Source: National Bureau of Economic Research  

Release: NBER Macrohistory Database  

Units:  Millions of Passengers, Not Seasonally Adjusted

Frequency:  Annual

Series Is Presented Here As Two Variables--(1)--Original Data, 1875-1916 (2)--Original Data, 1911-1937. Data For 1911-1937 Are Based On The Calendar Year. Source: Data For 1875-1910: Letter From The Pullman Company. Data For 1911-1916: The Statistical Abstract Of The United States, 1924, P. 381.

This NBER data series a03010gb appears on the NBER website in Chapter 3 at http://www.nber.org/databases/macrohistory/contents/chapter03.html.

NBER Indicator: a03010gb