Source: National Bureau of Economic Research  

Release: NBER Macrohistory Database  

Units:  Thousands of Long Tons, Not Seasonally Adjusted

Frequency:  Annual

Rail Consumption Estimates Are Computed As Rail Production Plus Imports And Minus Exports. Prior To 1872 Figures Are Only For Production Plus Imports. Data Through 1940 Were Computed By The American Iron And Steel Institute. Data Beginning 1941 From"Metal Statistics" Are Based On American Iron And Steel Institute Production Figures, And Import And Export Data Are From The U.S. Department Of Commerce. The Data Cover Total Production Of Iron And Steel Rails. They Include Rerolled Rails, Girder And High Tee Rails, And Streetcar Rails. One Long Ton = 2240 Lb. Avoir. = 1016.06 Kg. Source: 1849-1940: American Iron & Steel Institute, "Annual Statistical Reports." 1941-1961:"Metal Statistics, " American Metal Market, 1962 And 1963.

This NBER data series a02084 appears on the NBER website in Chapter 2 at http://www.nber.org/databases/macrohistory/contents/chapter02.html.

NBER Indicator: a02084