Source: U.S. Bureau of Economic Analysis
Release: Gross Domestic Product
BEA Account Code: B4608C
For more information about this series, please see http://www.bea.gov/national/."
U.S. Bureau of Economic Analysis, Persons engaged in production: Domestic private industries: Metal mining [B4608C0A173NBEA], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/B4608C0A173NBEA, March 19, 2018.