Source: U.S. Bureau of Economic Analysis
Release: Gross Domestic Product
BEA Account Code: B4239C
For more information about this series, please see http://www.bea.gov/national/.
U.S. Bureau of Economic Analysis, Full-time and part-time employees: Domestic private industries: Railroad transportation [B4239C0A173NBEA], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/B4239C0A173NBEA, December 14, 2018.