Series Is Presented Here As Two Variables--(1)--Original Data, 1951-1956 (2)--Original Data, 1956-1969. Source: Unpublished Table From J. Shiskin, U.S. Bureau Of The Census
This NBER data series m15031a appears on the NBER website in Chapter 15 at http://www.nber.org/databases/macrohistory/contents/chapter15.html.
NBER Indicator: m15031a
Release: NBER Macrohistory Database
National Bureau of Economic Research, Defense Department, Military Prime Contract Awards To U.S. Business Firms for United States [M1531AUSM144NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M1531AUSM144NNBR/, August 1, 2015.