Source: National Bureau of Economic Research  

Release: NBER Macrohistory Database  

Units:  Millions of Car-Miles, Not Seasonally Adjusted

Frequency:  Monthly

Switching And Terminal Companies Are Excluded. Data For 1918-1919 Were Computed By NBER By Dividing Series (Revenue And Non-Revenue Freight Ton Miles) By (Average Load Per Freight Car). The Unadjusted Figure For January 1920 Was Derived By Subtracting February Figure From A Cumulative Two-Month Total. Source: Data For 1918-1919 Were Computed By NBER; All Other Data Are From The Interstate Commerce Commission, Data For 1920-1934: "Freight And Passenger Service Operating Statistics Of Class I Steam Railways In The United States; Data For 1935-1943: "Freight Train Performance Of Class I Steam Railways In The United States".

This NBER data series m03041 appears on the NBER website in Chapter 3 at http://www.nber.org/databases/macrohistory/contents/chapter03.html.

NBER Indicator: m03041