Consumer Price Index for All Urban Consumers: Fees for Lessons or Instructions in U.S. City Average (CUSR0000SERF03)

U.S. Bureau of Labor Statistics, Consumer Price Index for All Urban Consumers: Fees for Lessons or Instructions in U.S. City Average [CUSR0000SERF03], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/CUSR0000SERF03, .