Series Is Presented Here As Two Variables--(1)--Original Data, 1939-1946 (2)--Original Data, 1946-1967. The Fourth Quarter Of The First Segment Was Raised To The Level Of The Second Segment (August, 1965 Revision) By Ratio Of 1945 Annual Totals: Survey Of Current Business, August, 1965 / U.S. Income And Output 1958 = 1.03926. Source: Department Of Commerce, Survey Of Current Business, August, 1965 For Data Through 1962; Thereafter, Data Furnished By July Issues Of The Survey Of Current Business, Beginning The July, 1966 Issue.
This NBER data series q09072b appears on the NBER website in Chapter 9 at http://www.nber.org/databases/macrohistory/contents/chapter09.html.
NBER Indicator: q09072b
Release: NBER Macrohistory Database
National Bureau of Economic Research, Corporate Profits Before Taxes for United States [Q0972BUSQ027NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/Q0972BUSQ027NNBR/, June 29, 2015.