SOTWStatistics of the World

Economic data

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US CPI-U Inflation, 12-Month Change (Monthly, NSA, BLS calculation)

% · Monthly · U.S. Bureau of Labor Statistics

BLS.CPIU.ALL.PCT12M.NSA.M

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Recorded state & recording cutoff

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Definition, coverage & attribution

BLS-calculated 12-month percent change of the NSA CPI-U index (1982-84=100), as returned by the BLS API with calculations enabled; not computed by SOTW. Months without a BLS calculation (history start, the October 2025 unavailable index and the month a year later) are kept as missing, never zero.

Source: U.S. Bureau of Labor Statistics, CPI-U all items, U.S. city average, not seasonally adjusted (CUUR0000SA0); 12-month percent change as calculated by the BLS API. BLS.gov cannot vouch for the data or analyses derived from these data after the data have been retrieved from BLS.gov.

Reuse terms: public-domain. Effective resale permission: permitted under the provider terms.

Series-wide coverage: 1913-01-01 to 2026-10-01. SOTW publication: 2026-11-11T13:50:05.843965+00:00.

Acquisition and dataset-update dates do not establish original publication dates. This view shows current source readings. Use a recorded-state pin to replay SOTW’s archive from its activation boundary.

This reviewed definition covers one geography with its publisher’s own method and scope. Country overlays require a qualified comparable cohort.

{
  "unit": "%",
  "concept": "CPI for All Urban Consumers (CPI-U), all items, U.S. city average, 1982-84=100",
  "dataset": "BLS CPI (CU)",
  "selection": {
    "field": "pct_changes[\"12\"]",
    "series_id": "CUUR0000SA0",
    "calculations": true
  },
  "status_rule": "BLS footnotes are kept per row; finality is unknown.",
  "growth_basis": "BLS API calculated 12-month percent change; not recomputed by SOTW",
  "history_origin": "1913-01",
  "source_updated": {
    "latest_period": "2026-09",
    "implied_rate_agreement": {
      "agree": 1352,
      "differ": 0,
      "differ_periods": []
    },
    "actual_source_availability_at": null,
    "original_publisher_release_at": null
  },
  "missingness_rule": "A month without a BLS 12-month calculation is stored as null with its reason, never zero.",
  "credential_policy": "Registered key from BLS_API_KEY (as etl_bls.py); sent only in the request body; retained requests are redacted",
  "seasonal_adjustment": "not seasonally adjusted",
  "native_values_recomputed": false,
  "seasonal_adjustment_basis": "BLS series code prefix CUU denotes unadjusted CPI-U; the adjusted series is CUSR0000SA0."
}