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Consumer Price Index and major components – Seasonally adjusted1
A seasonally adjusted series is one from which seasonal movements have been eliminated. Each month, the previous month's seasonally adjusted index is subject to revision. On an annual basis, the seasonally adjusted values for the last three years are revised with the January data release. Users employing Consumer Price Index (CPI) data for indexation purposes are advised to use the unadjusted indexes. For more information on the availability and uses of seasonally adjusted CPI data, see the Definitions, data sources and methods section of survey 2301 (www.statcan.gc.ca/imdb-bmdi/2301-eng.htm).
The Bank of Canada's core index excludes eight of the Consumer Price Index's most volatile components (fruit, fruit preparations and nuts; vegetables and vegetable preparations; mortgage interest cost; natural gas; fuel oil and other fuels; gasoline; inter-city transportation; and tobacco products and smokers' supplies) as well as the effects of changes in indirect taxes on the remaining components. For additional information on the core CPI, please consult the Bank of Canada website (www.bankofcanada.ca/rates/indicators/key-variables/inflation-control-target/).