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Consumer Price Index
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Updated seasonal factors and indexes to be introduced February 11, 2020
Each year with the release of the January CPI, seasonal adjustment factors are recalculated to reflect price movements from the just-completed calendar year. This routine annual recalculation may result in revisions to seasonally adjusted indexes for the previous 5 years. BLS made available recalculated seasonally adjusted indexes, as well as recalculated seasonal adjustment factors, for the period January 2015 through December 2019, on Tuesday, February 11, 2020. The revised indexes and seasonal factors are available at Seasonal Adjustment in the CPI.