Series Is Presented Here As Two Variables--(1)--Original Data, 1939-1946 (2)--Original Data, 1946-1969. Data Reflect Quarterly Totals At Annual Rates. Unadjusted Figures Were Multiplied By Four To Derive Quarterly Totals At Annual Rates. Source: Department Of Commerce, National Income, 1954 Edition, A Supplement To The Survey Of Current Business For Data Through 1945; Survey Of Current Business, Quarterly Tables For 1945.
This NBER data series q09072a appears on the NBER website in Chapter 9 at http://www.nber.org/databases/macrohistory/contents/chapter09.html.
NBER Indicator: q09072a
Release: NBER Macrohistory Database
National Bureau of Economic Research, Corporate Profits Before Taxes for United States [Q0972AUSQ027NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/Q0972AUSQ027NNBR/, October 10, 2015.