One-third of the CPI data is now estimated.
ONE THIRD.
they're lying to you, and you don't even know it. pic.twitter.com/kZGhqyxvaS
— Roberto Rios (@peruvian_bull) September 4, 2025
When data is not available, BLS staff typically develop estimates for approximately 10% of the cells in the CPI calculation. However, the share of data in the CPI that is estimated has increased significantly in recent months and is now above 30%, see chart below.
https://www.apolloacademy.com/the-quality-of-the-cpi-data-continues-to-deteriorate/