Series Is Presented Here As 2 Variables: (1) Original Data, 1938-41; (2) Original Data, 1947-56. Figures For 11/1946-3/1948, And 5/1950 Adjusted Downward By Source To "Eliminate Effects Of Amendments To The National Housing Act Or Of Administrative Changes Affecting The Magnitude Of These Data Series." - Letter Of 6/6/1956 To NBER By A. F. Thornton, Director, Div. Of Res. & Statistics, F.H.A. Source: Federal Housing Administration, Division Of Research And Statistics This NBER data series m02164a appears on the NBER website in Chapter 2 at http://www.nber.org/databases/macrohistory/contents/chapter02.html. NBER Indicator: m02164a

Series Is Presented Here As 2 Variables: (1) Original Data, 1938-40; (2) Original Data, 1945-56. Source: Federal Housing Administration, "Monthly Report Of Fha Insuring Operations" This NBER data series m02163a appears on the NBER website in Chapter 2 at http://www.nber.org/databases/macrohistory/contents/chapter02.html. NBER Indicator: m02163a

Data Through June 1961 Are Based On 25 Year Mortgages Prepaid In 12 Years; Data For July 1961-1965 Are Based On 30 Year Mortgages Prepaid In 15 Years. Source: U.S. Department Of Commerce, Business Condition Digest. This NBER data series m13045 appears on the NBER website in Chapter 13 at http://www.nber.org/databases/macrohistory/contents/chapter13.html. NBER Indicator: m13045

Source: Life Insurance Association Of America, Data For 1952-1963: Mimeographed Summary Table On "New Commitments Of Reporting Life Insurance Companies"; Data For 1964-1965: Monthly Tabulation Of "Forward Investment Commitments Of Life Insurance Companies" This NBER data series m10170 appears on the NBER website in Chapter 10 at http://www.nber.org/databases/macrohistory/contents/chapter10.html. NBER Indicator: m10170