Source: Life Insurance Association Of America, Data For 1952-1960 Are From Association Files; Data For 1961-1967 Are From The Monthly Release, "Forward Investment Of Commitments Of Life Insurance Companies" This NBER data series m10129 appears on the NBER website in Chapter 10 at http://www.nber.org/databases/macrohistory/contents/chapter10.html. NBER Indicator: m10129

Series Is Presented Here As Two Variables--(1)--Original Data, 1913-1937 (2)--Original Data, 1933-1944. Monthly Data Were Available Beginning In 1933. Annual Averages Date To 1913. The 1937 Annual Figure For The Two Variables Has A Ratio Of 1.063 (1937 2Nd Segment Divided By The 1St Segment Yields 877.43/825.31=1.063. Source: Bls Letters For 1933, 1934, 1936, 1937; Bls "Wholesale Prices, " January, 1936, P.17, For 1935; Current Bulletins For 1938 And Succeeding Years. This NBER data series m04137b appears on the NBER website in Chapter 4 at http://www.nber.org/databases/macrohistory/contents/chapter04.html. NBER Indicator: m04137b