Source: National Bureau of Economic Research  

Release: NBER Macrohistory Database  

Units:  Billion of Ton-Miles, Not Seasonally Adjusted

Frequency:  Annual

Series Is Presented Here As Two Variables--(1)--Original Data, 1890-1916 (2)--Original Data, 1916-1943. Data Are For Class I, Ii, And Iii Railways. The Year End Is June 30. Source: Interstate Commerce Commission, "Statistics Of Railways In The United States For 1943, " P. 150, Published 1945

This NBER data series a03003ca appears on the NBER website in Chapter 3 at http://www.nber.org/databases/macrohistory/contents/chapter03.html.

NBER Indicator: a03003ca