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Supplemental files for the current year are available individually by month. Supplemental files for previous years are available in a compressed file for each year.
Caution: Data in archived CPI Supplemental files may have been revised in subsequent editions. In particular, seasonally adjusted indexes and percent changes are revised with the release of January data each year for the preceding five years.
Instructions to decompress Zip files
Last Modified Date: November 13, 2019