Inflation

https://www.dol.gov/whd/state/stateminwagehis.htm Minimum changes by state for 1968 to 1981 provides data from the United States Department of Labor.

https://www.usinflationcalculator.com May 22, 2025 "The U.S. Inflation Calculator measures the dollar's purchasing power over time. Learn how this calculator works. The US Inflation Calculator uses the latest US government CPI data... (See recent inflation rates.) The calculator allows users to input a dollar amount and a year, and it will calculate the equivalent purchasing power of that amount in any other year since 1913. This is important because inflation erodes the purchasing power of money over time, meaning that a dollar today will not buy as much as a dollar did in the past." U.S. Bureau of Labor Statistics