Source: U.S. Bureau of Economic Analysis
Release: Gross Domestic Product
BEA Account Code: A061RC
For more information about this series, please see http://www.bea.gov/national/."
U.S. Bureau of Economic Analysis, Contributions for government social insurance, domestic [A061RC1Q027SBEA], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/A061RC1Q027SBEA, February 25, 2018.