Source: National Bureau of Economic Research  

Release: NBER Macrohistory Database  

Units:  Thousands of Service Hours, Not Seasonally Adjusted

Frequency:  Monthly

Notes:

Data For July 1921 Through December 1932 Include Switching And Terminal Companies; Data For January 1933 Through September 1942 Exclude Them. Source: Interstate Commerce Commission, Bureau Of Labor Statistics, And National Bureau Of Economic Research, The Sum Of"Computed-Total Time Actually Worked By All Employees And Constructive Allowances For Transportation Trains And Engine-Wages Statistics For The Class I Steam Railroads In U.S.

This NBER data series m08157 appears on the NBER website in Chapter 8 at http://www.nber.org/databases/macrohistory/contents/chapter08.html.

NBER Indicator: m08157