Source: U.S. Bureau of Economic Analysis
Release: Gross Domestic Product
BEA Account Code: B4911C
For more information about this series, please see http://www.bea.gov/national/.
U.S. Bureau of Economic Analysis, Employer contributions for employee pension and insurance funds: Domestic private industries: Transportation [B4911C0A144NBEA], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/B4911C0A144NBEA, April 25, 2019.