{
  "name": "U.S. Manufacturing Effective-Tariff Index",
  "description": "USITC Calculated Duties divided by covered customs value over a constant 36-family manufacturing panel, monthly from 2014-01. Rebased to an index (2014-01 = 100) alongside the raw rate. This is a statistical effective-rate measure, not a cash-collections ledger.",
  "url": "https://www.mfgcalcs.com/data/us-manufacturing-effective-tariff-index",
  "asOf": "2026-06",
  "basePeriod": "2014-01",
  "base": 100,
  "panelFamilies": 36,
  "unit": "percent (effective rate); index base 100",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "attribution": "MFG Calcs (mfgcalcs.com), compiled from USITC DataWeb open data",
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