Product main page This monthly release of the The Consumer Price Index (CPI) for Canada, the provinces, Whitehorse and Yellowknife, provides a descriptive summary of retail price movements, inflation rates and the factors underlying them. The CPI also contains the following tabular information: latest price index movements for the eight major components; price index changes on one and 12-month bases for an extensive number of components and groups; historical monthly information; and price indices reclassified according to categories of goods and services.