the source uses 2020 as base year with an index of 100 points
Supplementary notes
The consumer price index is compiled monthly by the Statistics Bureau, Ministry of Internal Affairs and Communications. The purpose of consumer price indexes is to measure price changes in various goods and services purchased by households, leveling their prices in the base year at 100 points and keeping their weight in the 'basket' constant over time. A retail price survey feeds the index, regularly tracking the latest prices in each municipality.
In 2024, the Consumer Price Index (CPI) of public transportation in Japan stood at *** index points, up from points in the previous year. The lowest price level of the surveyed period was in 2017 with a CPI of **** points.
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e-Stat (Japan). (January 24, 2025). Consumer Price Index (CPI) of public transportation in Japan from 2015 to 2024 [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 29, 2026, from /statistics/662863/japan-public-transport-consumer-price-index/
e-Stat (Japan). "Consumer Price Index (CPI) of public transportation in Japan from 2015 to 2024." Chart. January 24, 2025. ÌÇÐÄÆƽâ°æ. Accessed July 29, 2026. /statistics/662863/japan-public-transport-consumer-price-index/
e-Stat (Japan). (2025). Consumer Price Index (CPI) of public transportation in Japan from 2015 to 2024. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 29, 2026. /statistics/662863/japan-public-transport-consumer-price-index/
e-Stat (Japan). "Consumer Price Index (Cpi) of Public Transportation in Japan from 2015 to 2024." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 24 Jan 2025, /statistics/662863/japan-public-transport-consumer-price-index/
e-Stat (Japan), Consumer Price Index (CPI) of public transportation in Japan from 2015 to 2024 ÌÇÐÄÆƽâ°æ, /statistics/662863/japan-public-transport-consumer-price-index/ (last visited July 29, 2026)
Consumer Price Index (CPI) of public transportation in Japan from 2015 to 2024 [Graph], e-Stat (Japan), January 24, 2025. [Online]. Available: /statistics/662863/japan-public-transport-consumer-price-index/
