{
  "name": "Sourcing Diversification Tracker: U.S. Manufacturing Import Concentration",
  "version": "2.0.0",
  "description": "For every tracked U.S. manufacturing family, the retained-source lower bound of the Herfindahl-Hirschman Index (HHI) per year, its exact 2018 reading where available (otherwise the family's first tracked year) versus latest, and the direction of that HHI floor. Board-value coverage is explicit; the result does not claim full-market concentration when a source tail is omitted. USITC public-domain.",
  "url": "https://www.mfgcalcs.com/signals/diversification",
  "baseYear": "2018",
  "moveThreshold": 200,
  "unit": "named-source HHI lower bound on a 0-10000 scale",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "attribution": "MFG Calcs (mfgcalcs.com), compiled from USITC DataWeb open data",
  "count": 57,
  "families": [
    {
      "family": "semiconductors",
      "label": "Semiconductors and integrated circuits",
      "baseYear": "2023",
      "latestYear": "2025",
      "hhiBase": 980,
      "hhiLatest": 1220,
      "hhiDelta": 240,
      "band": "diversified",
      "trend": "concentrating",
      "topCountry": "Taiwan",
      "topSharePct": 24,
      "namedCountries": 10,
      "baseBoardValueCoveragePct": 81,
      "latestBoardValueCoveragePct": 82.4,
      "endpointBoardsComplete": false,
      "hhiBasis": "retained-source-lower-bound",
      "hhiSpark": [
        [
          "2023",
          980
        ],
        [
          "2024",
          1080
        ],
        [
          "2025",
          1220
        ]
      ]
    },
    {
      "family": "nickel-alloys",
      "label": "Nickel and nickel alloys",
      "baseYear": "2018",
      "latestYear": "2025",
      "hhiBase": 1440,
      "hhiLatest": 1660,
      "hhiDelta": 220,
      "band": "moderately concentrated",
      "trend": "concentrating",
      "topCountry": "Canada",
      "topSharePct": 35.7,
      "namedCountries": 10,
      "baseBoardValueCoveragePct": 90.2,
      "latestBoardValueCoveragePct": 88.9,
      "endpointBoardsComplete": false,
      "hhiBasis": "retained-source-lower-bound",
      "hhiSpark": [
        [
          "2014",
          1430
        ],
        [
          "2015",
          1380
        ],
        [
          "2016",
          1830
        ],
        [
          "2017",
          1460
        ],
        [
          "2018",
          1440
        ],
        [
          "2019",
          1600
        ],
        [
          "2020",
          2050
        ],
        [
          "2021",
          1880
        ],
        [
          "2022",
          1420
        ],
        [
          "2023",
          1710
        ],
        [
          "2024",
          1400
        ],
        [
          "2025",
          1660
        ]
      ]
    },
    {
      "family": "machine-tools-forming",
      "label": "Metal-forming machine tools",
      "baseYear": "2023",
      "latestYear": "2025",
      "hhiBase": 850,
      "hhiLatest": 980,
      "hhiDelta": 130,
      "band": "diversified",
      "trend": "steady",
      "topCountry": "Germany",
      "topSharePct": 18.9,
      "namedCountries": 10,
      "baseBoardValueCoveragePct": 79.1,
      "latestBoardValueCoveragePct": 82.8,
      "endpointBoardsComplete": false,
      "hhiBasis": "retained-source-lower-bound",
      "hhiSpark": [
        [
          "2023",
          850
        ],
        [
          "2024",
          960
        ],
        [
          "2025",
          980
        ]
      ]
    },
    {
      "family": "engines",
      "label": "Internal combustion engines",
      "baseYear": "2018",
      "latestYear": "2025",
      "hhiBase": 1680,
      "hhiLatest": 1780,
      "hhiDelta": 100,
      "band": "moderately concentrated",
      "trend": "steady",
      "topCountry": "Mexico",
      "topSharePct": 35.9,
      "namedCountries": 10,
      "baseBoardValueCoveragePct": 93,
      "latestBoardValueCoveragePct": 90.9,
      "endpointBoardsComplete": false,
      "hhiBasis": "retained-source-lower-bound",
      "hhiSpark": [
        [
          "2014",
          1590
        ],
        [
          "2015",
          1570
        ],
        [
          "2016",
          1830
        ],
        [
          "2017",
          1770
        ],
        [
          "2018",
          1680
        ],
        [
          "2019",
          1720
        ],
        [
          "2020",
          1710
        ],
        [
          "2021",
          1660
        ],
        [
          "2022",
          1670
        ],
        [
          "2023",
          1730
        ],
        [
          "2024",
          1890
        ],
        [
          "2025",
          1780
        ]
      ]
    },
    {
      "family": "rubber-products",
      "label": "Rubber materials and products",
      "baseYear": "2018",
      "latestYear": "2025",
      "hhiBase": 960,
      "hhiLatest": 1030,
      "hhiDelta": 70,
      "band": "diversified",
      "trend": "steady",
      "topCountry": "Mexico",
      "topSharePct": 25.6,
      "namedCountries": 10,
      "baseBoardValueCoveragePct": 80.7,
      "latestBoardValueCoveragePct": 80,
      "endpointBoardsComplete": false,
      "hhiBasis": "retained-source-lower-bound",
      "hhiSpark": [
        [
          "2014",
          900
        ],
        [
          "2015",
          940
        ],
        [
          "2016",
          960
        ],
        [
          "2017",
          960
        ],
        [
          "2018",
          960
        ],
        [
          "2019",
          910
        ],
        [
          "2020",
          950
        ],
        [
          "2021",
          910
        ],
        [
          "2022",
          890
        ],
        [
          "2023",
          1020
        ],
        [
          "2024",
          1000
        ],
        [
          "2025",
          1030
        ]
      ]
    },
    {
      "family": "filtering-separation",
      "label": "Filtering and separation equipment",
      "baseYear": "2023",
      "latestYear": "2025",
      "hhiBase": 1240,
      "hhiLatest": 1270,
      "hhiDelta": 30,
      "band": "diversified",
      "trend": "steady",
      "topCountry": "Mexico",
      "topSharePct": 30,
      "namedCountries": 10,
      "baseBoardValueCoveragePct": 79,
      "latestBoardValueCoveragePct": 78.2,
      "endpointBoardsComplete": false,
      "hhiBasis": "retained-source-lower-bound",
      "hhiSpark": [
        [
          "2023",
          1240
        ],
        [
          "2024",
          1300
        ],
        [
          "2025",
          1270
        ]
      ]
    },
    {
      "family": "steel-flat-rolled",
      "label": "Steel flat-rolled products",
      "baseYear": "2018",
      "latestYear": "2025",
      "hhiBase": 1390,
      "hhiLatest": 1410,
      "hhiDelta": 20,
      "band": "diversified",
      "trend": "steady",
      "topCountry": "Canada",
      "topSharePct": 29.8,
      "namedCountries": 10,
      "baseBoardValueCoveragePct": 84.8,
      "latestBoardValueCoveragePct": 88,
      "endpointBoardsComplete": false,
      "hhiBasis": "retained-source-lower-bound",
      "hhiSpark": [
        [
          "2014",
          960
        ],
        [
          "2015",
          1010
        ],
        [
          "2016",
          1250
        ],
        [
          "2017",
          1100
        ],
        [
          "2018",
          1390
        ],
        [
          "2019",
          1650
        ],
        [
          "2020",
          1930
        ],
        [
          "2021",
          1760
        ],
        [
          "2022",
          1540
        ],
        [
          "2023",
          1930
        ],
        [
          "2024",
          1520
        ],
        [
          "2025",
          1410
        ]
      ]
    },
    {
      "family": "stainless-steel",
      "label": "Stainless steel mill products",
      "baseYear": "2018",
      "latestYear": "2025",
      "hhiBase": 700,
      "hhiLatest": 720,
      "hhiDelta": 20,
      "band": "diversified",
      "trend": "steady",
      "topCountry": "Taiwan",
      "topSharePct": 17.1,
      "namedCountries": 10,
      "baseBoardValueCoveragePct": 76.8,
      "latestBoardValueCoveragePct": 74.8,
      "endpointBoardsComplete": false,
      "hhiBasis": "retained-source-lower-bound",
      "hhiSpark": [
        [
          "2014",
          730
        ],
        [
          "2015",
          760
        ],
        [
          "2016",
          660
        ],
        [
          "2017",
          640
        ],
        [
          "2018",
          700
        ],
        [
          "2019",
          670
        ],
        [
          "2020",
          650
        ],
        [
          "2021",
          810
        ],
        [
          "2022",
          800
        ],
        [
          "2023",
          740
        ],
        [
          "2024",
          730
        ],
        [
          "2025",
          720
        ]
      ]
    },
    {
      "family": "steel-pipe-tube",
      "label": "Steel pipe and tube",
      "baseYear": "2018",
      "latestYear": "2025",
      "hhiBase": 690,
      "hhiLatest": 710,
      "hhiDelta": 20,
      "band": "diversified",
      "trend": "steady",
      "topCountry": "South Korea",
      "topSharePct": 16.2,
      "namedCountries": 10,
      "baseBoardValueCoveragePct": 70,
      "latestBoardValueCoveragePct": 74.3,
      "endpointBoardsComplete": false,
      "hhiBasis": "retained-source-lower-bound",
      "hhiSpark": [
        [
          "2014",
          880
        ],
        [
          "2015",
          760
        ],
        [
          "2016",
          910
        ],
        [
          "2017",
          850
        ],
        [
          "2018",
          690
        ],
        [
          "2019",
          700
        ],
        [
          "2020",
          900
        ],
        [
          "2021",
          1140
        ],
        [
          "2022",
          820
        ],
        [
          "2023",
          800
        ],
        [
          "2024",
          840
        ],
        [
          "2025",
          710
        ]
      ]
    },
    {
      "family": "lifting-handling",
      "label": "Lifting and handling equipment",
      "baseYear": "2023",
      "latestYear": "2025",
      "hhiBase": 910,
      "hhiLatest": 930,
      "hhiDelta": 20,
      "band": "diversified",
      "trend": "steady",
      "topCountry": "Mexico",
      "topSharePct": 16.6,
      "namedCountries": 10,
      "baseBoardValueCoveragePct": 86.2,
      "latestBoardValueCoveragePct": 86,
      "endpointBoardsComplete": false,
      "hhiBasis": "retained-source-lower-bound",
      "hhiSpark": [
        [
          "2023",
          910
        ],
        [
          "2024",
          890
        ],
        [
          "2025",
          930
        ]
      ]
    },
    {
      "family": "turbines",
      "label": "Turbines and fluid-power drives",
      "baseYear": "2018",
      "latestYear": "2025",
      "hhiBase": 930,
      "hhiLatest": 940,
      "hhiDelta": 10,
      "band": "diversified",
      "trend": "steady",
      "topCountry": "Canada",
      "topSharePct": 18.4,
      "namedCountries": 10,
      "baseBoardValueCoveragePct": 84.1,
      "latestBoardValueCoveragePct": 82.2,
      "endpointBoardsComplete": false,
      "hhiBasis": "retained-source-lower-bound",
      "hhiSpark": [
        [
          "2014",
          1100
        ],
        [
          "2015",
          1000
        ],
        [
          "2016",
          920
        ],
        [
          "2017",
          910
        ],
        [
          "2018",
          930
        ],
        [
          "2019",
          1060
        ],
        [
          "2020",
          760
        ],
        [
          "2021",
          810
        ],
        [
          "2022",
          990
        ],
        [
          "2023",
          1000
        ],
        [
          "2024",
          960
        ],
        [
          "2025",
          940
        ]
      ]
    },
    {
      "family": "switchgear-connectors",
      "label": "Switchgear, connectors, and controls",
      "baseYear": "2020",
      "latestYear": "2025",
      "hhiBase": 1590,
      "hhiLatest": 1590,
      "hhiDelta": 0,
      "band": "moderately concentrated",
      "trend": "steady",
      "topCountry": "Mexico",
      "topSharePct": 37.2,
      "namedCountries": 10,
      "baseBoardValueCoveragePct": 80.3,
      "latestBoardValueCoveragePct": 76.3,
      "endpointBoardsComplete": false,
      "hhiBasis": "retained-source-lower-bound",
      "hhiSpark": [
        [
          "2020",
          1590
        ],
        [
          "2021",
          1490
        ],
        [
          "2022",
          1550
        ],
        [
          "2023",
          1710
        ],
        [
          "2024",
          1670
        ],
        [
          "2025",
          1590
        ]
      ]
    },
    {
      "family": "measuring-instruments",
      "label": "Measuring and inspection instruments",
      "baseYear": "2020",
      "latestYear": "2025",
      "hhiBase": 820,
      "hhiLatest": 800,
      "hhiDelta": -20,
      "band": "diversified",
      "trend": "steady",
      "topCountry": "Mexico",
      "topSharePct": 17.2,
      "namedCountries": 10,
      "baseBoardValueCoveragePct": 77.8,
      "latestBoardValueCoveragePct": 74.7,
      "endpointBoardsComplete": false,
      "hhiBasis": "retained-source-lower-bound",
      "hhiSpark": [
        [
          "2020",
          820
        ],
        [
          "2021",
          770
        ],
        [
          "2022",
          750
        ],
        [
          "2023",
          730
        ],
        [
          "2024",
          730
        ],
        [
          "2025",
          800
        ]
      ]
    },
    {
      "family": "industrial-furnaces",
      "label": "Industrial furnaces and ovens",
      "baseYear": "2023",
      "latestYear": "2025",
      "hhiBase": 800,
      "hhiLatest": 780,
      "hhiDelta": -20,
      "band": "diversified",
      "trend": "steady",
      "topCountry": "Germany",
      "topSharePct": 17.1,
      "namedCountries": 10,
      "baseBoardValueCoveragePct": 79.3,
      "latestBoardValueCoveragePct": 76.5,
      "endpointBoardsComplete": false,
      "hhiBasis": "retained-source-lower-bound",
      "hhiSpark": [
        [
          "2023",
          800
        ],
        [
          "2024",
          990
        ],
        [
          "2025",
          780
        ]
      ]
    },
    {
      "family": "plastics-rubber-machinery",
      "label": "Plastics and rubber machinery",
      "baseYear": "2023",
      "latestYear": "2025",
      "hhiBase": 1350,
      "hhiLatest": 1320,
      "hhiDelta": -30,
      "band": "diversified",
      "trend": "steady",
      "topCountry": "Germany",
      "topSharePct": 28.8,
      "namedCountries": 10,
      "baseBoardValueCoveragePct": 85.9,
      "latestBoardValueCoveragePct": 87.6,
      "endpointBoardsComplete": false,
      "hhiBasis": "retained-source-lower-bound",
      "hhiSpark": [
        [
          "2023",
          1350
        ],
        [
          "2024",
          1340
        ],
        [
          "2025",
          1320
        ]
      ]
    },
    {
      "family": "compressors-fans",
      "label": "Compressors and fans",
      "baseYear": "2023",
      "latestYear": "2025",
      "hhiBase": 1210,
      "hhiLatest": 1170,
      "hhiDelta": -40,
      "band": "diversified",
      "trend": "steady",
      "topCountry": "Mexico",
      "topSharePct": 23.2,
      "namedCountries": 10,
      "baseBoardValueCoveragePct": 82.6,
      "latestBoardValueCoveragePct": 82.7,
      "endpointBoardsComplete": false,
      "hhiBasis": "retained-source-lower-bound",
      "hhiSpark": [
        [
          "2023",
          1210
        ],
        [
          "2024",
          1180
        ],
        [
          "2025",
          1170
        ]
      ]
    },
    {
      "family": "heat-exchange",
      "label": "Heat exchange and process heating",
      "baseYear": "2023",
      "latestYear": "2025",
      "hhiBase": 850,
      "hhiLatest": 810,
      "hhiDelta": -40,
      "band": "diversified",
      "trend": "steady",
      "topCountry": "Mexico",
      "topSharePct": 15.9,
      "namedCountries": 10,
      "baseBoardValueCoveragePct": 80.1,
      "latestBoardValueCoveragePct": 79.7,
      "endpointBoardsComplete": false,
      "hhiBasis": "retained-source-lower-bound",
      "hhiSpark": [
        [
          "2023",
          850
        ],
        [
          "2024",
          810
        ],
        [
          "2025",
          810
        ]
      ]
    },
    {
      "family": "industrial-robots",
      "label": "Robots and automated machinery",
      "baseYear": "2023",
      "latestYear": "2025",
      "hhiBase": 890,
      "hhiLatest": 850,
      "hhiDelta": -40,
      "band": "diversified",
      "trend": "steady",
      "topCountry": "Germany",
      "topSharePct": 19.1,
      "namedCountries": 10,
      "baseBoardValueCoveragePct": 79.5,
      "latestBoardValueCoveragePct": 78.4,
      "endpointBoardsComplete": false,
      "hhiBasis": "retained-source-lower-bound",
      "hhiSpark": [
        [
          "2023",
          890
        ],
        [
          "2024",
          900
        ],
        [
          "2025",
          850
        ]
      ]
    },
    {
      "family": "glass-fiber",
      "label": "Glass fiber and reinforcements",
      "baseYear": "2023",
      "latestYear": "2025",
      "hhiBase": 1430,
      "hhiLatest": 1360,
      "hhiDelta": -70,
      "band": "diversified",
      "trend": "steady",
      "topCountry": "Mexico",
      "topSharePct": 28.6,
      "namedCountries": 10,
      "baseBoardValueCoveragePct": 82.5,
      "latestBoardValueCoveragePct": 80.6,
      "endpointBoardsComplete": false,
      "hhiBasis": "retained-source-lower-bound",
      "hhiSpark": [
        [
          "2023",
          1430
        ],
        [
          "2024",
          1400
        ],
        [
          "2025",
          1360
        ]
      ]
    },
    {
      "family": "steel-long-products",
      "label": "Steel bar, rod, and wire",
      "baseYear": "2018",
      "latestYear": "2025",
      "hhiBase": 920,
      "hhiLatest": 840,
      "hhiDelta": -80,
      "band": "diversified",
      "trend": "steady",
      "topCountry": "Canada",
      "topSharePct": 19.8,
      "namedCountries": 10,
      "baseBoardValueCoveragePct": 79,
      "latestBoardValueCoveragePct": 77.1,
      "endpointBoardsComplete": false,
      "hhiBasis": "retained-source-lower-bound",
      "hhiSpark": [
        [
          "2014",
          1210
        ],
        [
          "2015",
          1260
        ],
        [
          "2016",
          1130
        ],
        [
          "2017",
          1000
        ],
        [
          "2018",
          920
        ],
        [
          "2019",
          910
        ],
        [
          "2020",
          1650
        ],
        [
          "2021",
          1550
        ],
        [
          "2022",
          1400
        ],
        [
          "2023",
          1350
        ],
        [
          "2024",
          1300
        ],
        [
          "2025",
          840
        ]
      ]
    },
    {
      "family": "packaging-machinery",
      "label": "Packaging and filling machinery",
      "baseYear": "2018",
      "latestYear": "2025",
      "hhiBase": 1310,
      "hhiLatest": 1230,
      "hhiDelta": -80,
      "band": "diversified",
      "trend": "steady",
      "topCountry": "Germany",
      "topSharePct": 24.7,
      "namedCountries": 10,
      "baseBoardValueCoveragePct": 86.6,
      "latestBoardValueCoveragePct": 83.4,
      "endpointBoardsComplete": false,
      "hhiBasis": "retained-source-lower-bound",
      "hhiSpark": [
        [
          "2014",
          1360
        ],
        [
          "2015",
          1240
        ],
        [
          "2016",
          1350
        ],
        [
          "2017",
          1260
        ],
        [
          "2018",
          1310
        ],
        [
          "2019",
          1250
        ],
        [
          "2020",
          1230
        ],
        [
          "2021",
          1180
        ],
        [
          "2022",
          1010
        ],
        [
          "2023",
          1190
        ],
        [
          "2024",
          1170
        ],
        [
          "2025",
          1230
        ]
      ]
    },
    {
      "family": "aluminum-semis",
      "label": "Aluminum semi-finished products",
      "baseYear": "2018",
      "latestYear": "2025",
      "hhiBase": 810,
      "hhiLatest": 720,
      "hhiDelta": -90,
      "band": "diversified",
      "trend": "steady",
      "topCountry": "Canada",
      "topSharePct": 20.1,
      "namedCountries": 10,
      "baseBoardValueCoveragePct": 66.5,
      "latestBoardValueCoveragePct": 65.1,
      "endpointBoardsComplete": false,
      "hhiBasis": "retained-source-lower-bound",
      "hhiSpark": [
        [
          "2014",
          1510
        ],
        [
          "2015",
          1610
        ],
        [
          "2016",
          1550
        ],
        [
          "2017",
          1430
        ],
        [
          "2018",
          810
        ],
        [
          "2019",
          520
        ],
        [
          "2020",
          750
        ],
        [
          "2021",
          750
        ],
        [
          "2022",
          720
        ],
        [
          "2023",
          860
        ],
        [
          "2024",
          800
        ],
        [
          "2025",
          720
        ]
      ]
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      "family": "machine-tools-cutting",
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          "2023",
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          "2024",
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          "2025",
          1470
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      "topCountry": "Mexico",
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          "2014",
          1180
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          "2015",
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          1260
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          "2017",
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        [
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          "2019",
          1140
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          "2020",
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          "2021",
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          "2023",
          1050
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          "2024",
          1050
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          "2025",
          1000
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      "family": "pumps",
      "label": "Pumps for liquids",
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      "latestBoardValueCoveragePct": 81.1,
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          "2014",
          1210
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        [
          "2015",
          1150
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        [
          "2016",
          1180
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        [
          "2017",
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          "2018",
          1110
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        [
          "2019",
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          "2020",
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          "2021",
          1040
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          "2022",
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          "2023",
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          "2024",
          1040
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          "2025",
          1000
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      "family": "optical-components",
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      "topCountry": "Japan",
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      "latestBoardValueCoveragePct": 77.3,
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          "2014",
          1010
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        [
          "2015",
          980
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        [
          "2016",
          970
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        [
          "2017",
          960
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        [
          "2018",
          950
        ],
        [
          "2019",
          880
        ],
        [
          "2020",
          800
        ],
        [
          "2021",
          900
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        [
          "2022",
          910
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        [
          "2023",
          870
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          "2024",
          880
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        [
          "2025",
          810
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      "family": "plastics-resins",
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      "latestBoardValueCoveragePct": 82.2,
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          "2023",
          1630
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          "2024",
          1610
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          "2025",
          1480
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      "latestBoardValueCoveragePct": 82.6,
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      "hhiSpark": [
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          "2014",
          990
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        [
          "2015",
          1020
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        [
          "2016",
          990
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        [
          "2017",
          950
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        [
          "2018",
          960
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        [
          "2019",
          940
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        [
          "2020",
          910
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        [
          "2021",
          900
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        [
          "2022",
          860
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        [
          "2023",
          770
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        [
          "2024",
          770
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        [
          "2025",
          790
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      "family": "abrasives",
      "label": "Abrasives and grinding wheels",
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      "latestYear": "2025",
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      "topCountry": "Mexico",
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      "latestBoardValueCoveragePct": 76.6,
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      "hhiSpark": [
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          "2014",
          880
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        [
          "2015",
          880
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        [
          "2016",
          890
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        [
          "2017",
          850
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        [
          "2018",
          890
        ],
        [
          "2019",
          850
        ],
        [
          "2020",
          820
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        [
          "2021",
          760
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        [
          "2022",
          750
        ],
        [
          "2023",
          730
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        [
          "2024",
          700
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        [
          "2025",
          690
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      "family": "specialty-metals",
      "label": "Titanium and tungsten",
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      "hhiSpark": [
        [
          "2014",
          1220
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        [
          "2015",
          1240
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        [
          "2016",
          1440
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        [
          "2017",
          1350
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        [
          "2018",
          1380
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        [
          "2019",
          1330
        ],
        [
          "2020",
          1300
        ],
        [
          "2021",
          1230
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        [
          "2022",
          1220
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        [
          "2023",
          1270
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        [
          "2024",
          1210
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          "2025",
          1180
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      "family": "iron-steel-articles",
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          "2020",
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        [
          "2021",
          1510
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        [
          "2022",
          1550
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        [
          "2023",
          1410
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        [
          "2024",
          1450
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          "2025",
          1310
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      "family": "bearings",
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      "latestYear": "2025",
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      "latestBoardValueCoveragePct": 84.1,
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          "2014",
          1320
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          "2015",
          1290
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        [
          "2016",
          1220
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        [
          "2017",
          1230
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        [
          "2018",
          1200
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        [
          "2019",
          1200
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        [
          "2020",
          1160
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        [
          "2021",
          1200
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        [
          "2022",
          1090
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          "2023",
          1020
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        [
          "2024",
          970
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        [
          "2025",
          960
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      "family": "plastic-semis",
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          "2014",
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          "2015",
          1130
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          "2016",
          1140
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          "2017",
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          "2018",
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          "2020",
          1040
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        [
          "2021",
          1080
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          "2022",
          1050
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          "2023",
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          "2024",
          1050
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          "2025",
          900
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          "2020",
          1380
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        [
          "2021",
          1210
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          "2022",
          1170
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        [
          "2023",
          1200
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          "2024",
          1160
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        [
          "2025",
          1100
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      ]
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          "2014",
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          "2015",
          1510
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          "2016",
          1490
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          "2017",
          1530
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          "2018",
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        [
          "2019",
          1250
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        [
          "2020",
          1250
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          "2021",
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          "2022",
          1230
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          "2023",
          1140
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          "2024",
          1170
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          "2025",
          1150
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      "family": "steel-springs-chain",
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      "latestYear": "2025",
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      "topCountry": "Mexico",
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      "latestBoardValueCoveragePct": 87.4,
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      "hhiSpark": [
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          "2014",
          1830
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        [
          "2015",
          1930
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        [
          "2016",
          2140
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        [
          "2017",
          2070
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        [
          "2018",
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          "2019",
          1970
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          "2020",
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          "2021",
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          "2022",
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          "2023",
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          "2024",
          1740
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          "2025",
          1770
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      "topCountry": "Italy",
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          "2014",
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        [
          "2015",
          1280
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        [
          "2016",
          1200
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          "2017",
          1870
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        [
          "2018",
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        [
          "2019",
          980
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        [
          "2020",
          970
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        [
          "2021",
          910
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          "2022",
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          "2023",
          970
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          "2024",
          1030
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          "2025",
          850
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      "family": "technical-ceramics",
      "label": "Technical and refractory ceramics",
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      "topCountry": "Japan",
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      "latestBoardValueCoveragePct": 89,
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          "2014",
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        [
          "2015",
          2050
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          "2016",
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          "2017",
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          "2018",
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          "2019",
          2050
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        [
          "2020",
          1940
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          "2021",
          1770
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          "2022",
          1790
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        [
          "2023",
          1950
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          "2024",
          1850
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          "2025",
          1760
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      "family": "transformers-power",
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          "2020",
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          "2021",
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          "2022",
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          "2024",
          850
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          "2025",
          780
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      "family": "valves",
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      "latestBoardValueCoveragePct": 79.9,
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          "2015",
          1190
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          "2016",
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          "2017",
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          "2018",
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          "2019",
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          "2020",
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          "2021",
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          "2022",
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          "2024",
          1010
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          "2025",
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      "family": "cutting-tools",
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      "latestBoardValueCoveragePct": 76.2,
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          "2014",
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        [
          "2015",
          1110
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        [
          "2016",
          1170
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        [
          "2017",
          1150
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        [
          "2018",
          1190
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        [
          "2019",
          1100
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          "2020",
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          "2021",
          960
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          "2022",
          910
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          "2023",
          830
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        [
          "2024",
          810
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          "2025",
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        ]
      ]
    },
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      "family": "welding-equipment",
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      "topCountry": "Japan",
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      "latestBoardValueCoveragePct": 87.3,
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          "2015",
          1430
        ],
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          "2016",
          1520
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        [
          "2017",
          1590
        ],
        [
          "2018",
          1430
        ],
        [
          "2019",
          1370
        ],
        [
          "2020",
          1450
        ],
        [
          "2021",
          1270
        ],
        [
          "2022",
          1190
        ],
        [
          "2023",
          1130
        ],
        [
          "2024",
          1050
        ],
        [
          "2025",
          1030
        ]
      ]
    },
    {
      "family": "coatings-paints",
      "label": "Paints, coatings, and finishes",
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      "topCountry": "Canada",
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          "2015",
          1830
        ],
        [
          "2016",
          1830
        ],
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          "2017",
          1770
        ],
        [
          "2018",
          1760
        ],
        [
          "2019",
          1780
        ],
        [
          "2020",
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        ],
        [
          "2021",
          1600
        ],
        [
          "2022",
          1650
        ],
        [
          "2023",
          1630
        ],
        [
          "2024",
          1400
        ],
        [
          "2025",
          1340
        ]
      ]
    },
    {
      "family": "steel-fasteners",
      "label": "Steel fasteners",
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      "latestYear": "2025",
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      "topCountry": "Taiwan",
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      "latestBoardValueCoveragePct": 88,
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      "hhiSpark": [
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          "2014",
          1820
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          "2015",
          1860
        ],
        [
          "2016",
          1820
        ],
        [
          "2017",
          1890
        ],
        [
          "2018",
          1970
        ],
        [
          "2019",
          1850
        ],
        [
          "2020",
          1910
        ],
        [
          "2021",
          2000
        ],
        [
          "2022",
          2120
        ],
        [
          "2023",
          1730
        ],
        [
          "2024",
          1650
        ],
        [
          "2025",
          1540
        ]
      ]
    },
    {
      "family": "tanks-vessels",
      "label": "Tanks, vessels, and gas cylinders",
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      "latestYear": "2025",
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      "topCountry": "Mexico",
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      "latestBoardValueCoveragePct": 83.8,
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      "hhiSpark": [
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          "2014",
          1310
        ],
        [
          "2015",
          1300
        ],
        [
          "2016",
          1310
        ],
        [
          "2017",
          1480
        ],
        [
          "2018",
          1400
        ],
        [
          "2019",
          1300
        ],
        [
          "2020",
          1250
        ],
        [
          "2021",
          1090
        ],
        [
          "2022",
          1080
        ],
        [
          "2023",
          1010
        ],
        [
          "2024",
          1020
        ],
        [
          "2025",
          970
        ]
      ]
    },
    {
      "family": "semiconductor-equipment",
      "label": "Semiconductor and display equipment",
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      "latestYear": "2025",
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      "topCountry": "Japan",
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      "latestBoardValueCoveragePct": 93,
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      "hhiSpark": [
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          "2014",
          2330
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        [
          "2015",
          2000
        ],
        [
          "2016",
          2260
        ],
        [
          "2017",
          1990
        ],
        [
          "2018",
          1900
        ],
        [
          "2019",
          2700
        ],
        [
          "2020",
          2070
        ],
        [
          "2021",
          1890
        ],
        [
          "2022",
          1940
        ],
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          "2023",
          1590
        ],
        [
          "2024",
          1420
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        [
          "2025",
          1430
        ]
      ]
    },
    {
      "family": "molds-dies",
      "label": "Molds and die sets",
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      "latestYear": "2025",
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      "trend": "diversifying",
      "topCountry": "Canada",
      "topSharePct": 37.2,
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      "baseBoardValueCoveragePct": 91.4,
      "latestBoardValueCoveragePct": 85.8,
      "endpointBoardsComplete": false,
      "hhiBasis": "retained-source-lower-bound",
      "hhiSpark": [
        [
          "2014",
          2010
        ],
        [
          "2015",
          2280
        ],
        [
          "2016",
          2280
        ],
        [
          "2017",
          2350
        ],
        [
          "2018",
          2310
        ],
        [
          "2019",
          2340
        ],
        [
          "2020",
          2030
        ],
        [
          "2021",
          2220
        ],
        [
          "2022",
          2130
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        [
          "2023",
          2480
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        [
          "2024",
          1850
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        [
          "2025",
          1790
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      ]
    },
    {
      "family": "wire-cable",
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      "latestBoardValueCoveragePct": 84.2,
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          "2014",
          3190
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        [
          "2015",
          3240
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        [
          "2016",
          3240
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          "2017",
          3070
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        [
          "2018",
          3230
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        [
          "2019",
          3270
        ],
        [
          "2020",
          3010
        ],
        [
          "2021",
          2900
        ],
        [
          "2022",
          2750
        ],
        [
          "2023",
          2910
        ],
        [
          "2024",
          2960
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        [
          "2025",
          2670
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      ]
    },
    {
      "family": "aluminum-articles",
      "label": "Aluminum articles",
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      "latestBoardValueCoveragePct": 83.4,
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      "hhiSpark": [
        [
          "2020",
          1860
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        [
          "2021",
          1800
        ],
        [
          "2022",
          1640
        ],
        [
          "2023",
          1450
        ],
        [
          "2024",
          1340
        ],
        [
          "2025",
          1210
        ]
      ]
    },
    {
      "family": "carbon-insulators",
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      "latestYear": "2025",
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      "trend": "diversifying",
      "topCountry": "China",
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      "latestBoardValueCoveragePct": 83.2,
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      "hhiSpark": [
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          "2014",
          1160
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        [
          "2015",
          1250
        ],
        [
          "2016",
          1230
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        [
          "2017",
          1360
        ],
        [
          "2018",
          1690
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        [
          "2019",
          1090
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        [
          "2020",
          1260
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        [
          "2021",
          1320
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        [
          "2022",
          1080
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          "2023",
          1030
        ],
        [
          "2024",
          1140
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        [
          "2025",
          1020
        ]
      ]
    },
    {
      "family": "copper-semis",
      "label": "Copper semi-finished products",
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      "topCountry": "Canada",
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      "latestBoardValueCoveragePct": 77.6,
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          "2014",
          1760
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        [
          "2015",
          1610
        ],
        [
          "2016",
          1700
        ],
        [
          "2017",
          1630
        ],
        [
          "2018",
          1730
        ],
        [
          "2019",
          1900
        ],
        [
          "2020",
          1810
        ],
        [
          "2021",
          1880
        ],
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          "2022",
          1490
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          "2023",
          1700
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          "2024",
          1610
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        [
          "2025",
          1040
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      ]
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    {
      "family": "steel-structures",
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      "topCountry": "Mexico",
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      "latestBoardValueCoveragePct": 82.3,
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          "2014",
          1580
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        [
          "2015",
          1610
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          "2016",
          1570
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          "2017",
          1660
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          "2018",
          1840
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          "2019",
          1280
        ],
        [
          "2020",
          1220
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        [
          "2021",
          1310
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        [
          "2022",
          1280
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        [
          "2023",
          1150
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        [
          "2024",
          1000
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        [
          "2025",
          990
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      ]
    },
    {
      "family": "batteries",
      "label": "Batteries and storage cells",
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      "latestBoardValueCoveragePct": 92.4,
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        [
          "2024",
          3420
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        [
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          2500
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      "family": "hand-tools",
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      "latestBoardValueCoveragePct": 89.4,
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          "2015",
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          "2016",
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          "2017",
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          "2018",
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          "2019",
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          "2020",
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          "2021",
          2780
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          "2022",
          2540
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          "2023",
          2310
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          "2024",
          2190
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        [
          "2025",
          1840
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      ]
    },
    {
      "family": "industrial-lighting",
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      "latestBoardValueCoveragePct": 87.7,
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          "2024",
          4980
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          3190
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      ]
    },
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          "2015",
          3620
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          "2016",
          3710
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          "2017",
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          "2018",
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          "2019",
          4290
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          "2020",
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          "2021",
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          2420
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          2060
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          2200
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          2000
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}
