Inflation as measured by the consumer price index reflects the annual percentage change in the cost to the average consumer of acquiring a basket of goods and services that may be fixed or changed at specified intervals, such as yearly. The Laspeyres formula is generally used.

消費者物価指数(CPI) (%)

1970199020002005201020112012201320142015201620172018201920202021202220232024
英国6.48.11.22.12.53.92.62.31.50.41.02.62.31.71.02.57.96.83.3
アメリカ合衆国5.85.43.43.41.63.22.11.51.60.11.32.12.41.81.24.78.04.12.9
日本6.93.1-0.7-0.3-0.7-0.30.00.32.80.8-0.10.51.00.50.0-0.22.53.32.7
カナダ3.34.82.72.21.82.91.50.91.91.11.41.62.31.90.73.46.83.92.4
ドイツ3.52.71.41.51.12.12.01.50.90.50.51.51.71.40.13.16.95.92.3
フランス5.33.21.71.71.52.12.00.90.50.00.21.01.91.10.51.65.24.92.0
イタリア5.06.52.52.01.52.83.01.20.20.0-0.11.21.10.6-0.11.98.25.61.0