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Consumer Price Index

Information

21 January 2022
  • 2020-Base Explanation of the Consumer Price Index was released.
24 January 2025
  • Seasonally adjusted indices were revised retroactively.
    ARIMA models were updated as well.

Results

  • Latest Monthly Results
    Japan / Ku-area of Tokyo
    Monthly Report
  • 2024 Yearly Average Results for Japan (2020-base)
    Annual Report
  • Historical Data
    Indices of Items
  • Notes for users

Schedule

  • Schedule of Release

Methodology and other information

2020-Base

  • 2020-Base Explanation of the Consumer Price Index
  • List of information for items of the 2020-Base CPI (PDF:761KB) (Excel:152KB)
  • Main points of the 2020-base revision

2015-Base

  • 2015-Base Explanation of the Consumer Price Index
  • List of information for items of the 2015-Base CPI (PDF:75KB) (Excel:327KB)
  • Main points of the 2015-base revision

2010-Base

  • 2010-Base Explanation of the Consumer Price Index
  • Re-tabulation of 2010-base CPI (Japan, January 2010 - April 2015)

For more information

  • Frequently Asked Questions
  • Inquiry

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