Release: NBER Macrohistory Database
Data Refer To Aaa Grade Bonds. Source: Moody'S Public Utility Manual, 1965; Moody'S Bond Survey, Weekly Issues Thereafter.
This NBER data series m13063 appears on the NBER website in Chapter 13 at http://www.nber.org/databases/macrohistory/contents/chapter13.html.
NBER Indicator: m13063
National Bureau of Economic Research, Yields on Public Utility Bonds, Highest Rating for United States [M13063USM156NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/M13063USM156NNBR, July 21, 2017.