Source: National Bureau of Economic Research  

Release: NBER Macrohistory Database  

Units:  Number of Locomotives, Not Seasonally Adjusted

Frequency:  Annual

Series Is Presented Here As Two Variables--(1)--Original Data, 1889-1916 (2)--Original Data, 1911-1945 1911-1915 Data Are As Of June 1. 1916-1945 Data Are As Of December 31. Source: Interstate Commerce Commission, Annual Reports Of Statistics Of Railways In The United States

This NBER data series a01155b appears on the NBER website in Chapter 1 at http://www.nber.org/databases/macrohistory/contents/chapter01.html.

NBER Indicator: a01155b