Index of Yields of High Grade Corporate and Municipal Bonds for United States (M13021USM156NNBR)
1967-12: 5.70 Percent
Monthly, Not Seasonally Adjusted, Updated: 2012-08-20 8:18 AM CDT
|Source:|| National Bureau of Economic Research
|Release:||NBER Macrohistory Database|
Source: Standard And Poor'S Corporation, Data For 1900-1928: Standard Statistics Co., Base Book; Standard Statistical Bulletin, January 1932, P. 125. Data For 1929-1967: Computed By NBER By Taking A Simple Average Of Four Series, All Based On Standard And Poor'S Data -- Series 13023 (Municipal Bonds); Series 13024 (Railroad Bonds); Series 13025 (Public Utilities); Series 13026 (Industrial Bonds).