Consumer Price Index for All Urban Consumers: Public Transportation in U.S. City Average (CUSR0000SETG)

U.S. Bureau of Labor Statistics, Consumer Price Index for All Urban Consumers: Public Transportation in U.S. City Average [CUSR0000SETG], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/CUSR0000SETG, July 3, 2022.