Department of Labor Logo United States Department of Labor
Dot gov

The .gov means it's official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you're on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Consumer Price Index

Updated CPI-U-Research Series (CPI-U-RS) available March 29, 2018

Each year the CPI-U-RS is updated to include the past year’s data and the effect of any changes or new adjustments to previous research series data. A new adjustment was introduced this year; in 2016 the index for prescription drugs was switched from a geometric means formula to a Laspeyres formula. This year’s research series incorporates the effect of that change from 2010 through 2015. The data and related materials are available at the CPI-U Research Series page.