Very good article here well worth reading about the US Government manipulation of the CPI and GDP data.
John Williams: I look at US government statistics, the major ones that are followed by the public as well as trying to assess the underlying economic reality, along with inflation. That includes economic activity as measured by the gross domestic product (GDP), and inflation as measured by the consumer price index (CPI).
https://www.*****.com/opinion/2024-12-20/john-williams-were-dangerous-circumstance-risk-hyperinflation-ahead