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Japan

Consumer prices · 2,354 categories · latest 2026-09-01

CoverageNational-office detail
Price-series levelsLevel 1
Weight levelsLevel 1 + unranked items
Weight history3 dates · 2015-01-01 to 2025-01-01
Source detailitems (flat source file)
Series / concepts9,454 / 843
Period range1955-01-01 to 2026-09-01
Last successful ingest2026-10-28
Last changed vintage2026-10-23
International Monetary Fund, Statistics Bureau of Japan Frequencies: A, M

Consumer price index

Source

The same category from more than one publisher. The national statistics office is the record; the IMF's series are its own compilation and can differ in definition, coverage and vintage.

Base

Each Statistics Bureau base is a separate published catalogue. Categories and values are never spliced across rebases.

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Sources: Statistics Bureau of Japan, Consumer Price Index (as of 2026-09-06); International Monetary Fund (as of 2026-09-30). Computed here, not published: ratio of the index to the previous month; ratio of the index to the same month a year earlier. Collected by Living Inflation Data, HBS Innovations in Economic Measurement (IEM) Lab www.iemlab.org.

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Data quality

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