Source: U.S. Bureau of Economic Analysis
Release: Gross Domestic Product
BEA Account Code: N3264C
For more information about this series, please see http://www.bea.gov/national/."
U.S. Bureau of Economic Analysis, Corporate profits after tax: Domestic industries: Miscellaneous professional, scientific, and technical services [N3264C0A144NBEA], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/N3264C0A144NBEA, January 21, 2018.