Source: U.S. Bureau of Economic Analysis
Release: Gross Domestic Product
BEA Account Code: W780RC
For more information about this series, please see http://www.bea.gov/national/."
U.S. Bureau of Economic Analysis, Federal government current receipts: Contributions for government social insurance [W780RC1Q027SBEA], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/W780RC1Q027SBEA, April 26, 2018.