Source: National Bureau of Economic Research  

Release: NBER Macrohistory Database  

Units:  Percent, Not Seasonally Adjusted

Frequency:  Monthly

Notes:

Data Refer To Aaa Grade Bonds. Source: Moody'S Transportation Manual, 1965; Moody'S Bond Survey, Weekly Issues Thereafter.

This NBER data series m13061 appears on the NBER website in Chapter 13 at http://www.nber.org/databases/macrohistory/contents/chapter13.html.

NBER Indicator: m13061