Source: U.S. Bureau of Economic Analysis
Release: Gross Domestic Product
BEA Account Code: L31210
For more information about this series, please see http://www.bea.gov/national/."
U.S. Bureau of Economic Analysis, Current surplus of government enterprises: Federal: Postal Service [L312101A027NBEA], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/L312101A027NBEA, March 22, 2018.