Series Is Presented Here As Two Variables--(1)--Original Data, 1939-1945 (2)--Seasonally Adjusted Data, 1946-1968. Data Are Billions Of Dollars At Annual Rates. Source: Data Through 1962 Are From Survey Of Current Business, August 1965; Data For 1963-1968 Are From July Issues Of Survey Of Current Business.
This NBER data series q08276b appears on the NBER website in Chapter 8 at http://www.nber.org/databases/macrohistory/contents/chapter08.html.
NBER Indicator: q08276b
Release: NBER Macrohistory Database
National Bureau of Economic Research, Farm Income for United States [Q0876BUSQ027SNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/Q0876BUSQ027SNBR/, August 28, 2015.