Source: U.S. Bureau of Economic Analysis
Release: Gross Domestic Product
BEA Account Code: B4139C
For more information about this series, please see http://www.bea.gov/national/."
U.S. Bureau of Economic Analysis, Wage and salary accruals: Domestic private industries: Railroad transportation [B4139C0A144NBEA], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/B4139C0A144NBEA, March 17, 2018.