Source: U.S. Bureau of Economic Analysis
Release: Gross Domestic Product
BEA Account Code: CON550
For more information about this series, please see http://www.bea.gov/national/.
U.S. Bureau of Economic Analysis, Contributions for government social insurance: Employee and self-employed contributions: Federal social insurance funds: Railroad retirement [CON5501A027NBEA], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/CON5501A027NBEA, April 20, 2019.