Source: National Bureau of Economic Research  

Release: NBER Macrohistory Database  

Units:  Thousands of Long Tons, Not Seasonally Adjusted

Frequency:  Monthly

Data For October 1920, April-September 1921, And May-November 1926 Were Significantly Effected By Coal Strikes And Work Stoppages. Source: National Federation Of Iron And Steel Manufacturer'S, The Iron And Coal Trades Review, January 14, 1921, P. 48 And Later Issues.

This NBER data series m01133aa appears on the NBER website in Chapter 1 at http://www.nber.org/databases/macrohistory/contents/chapter01.html.

NBER Indicator: m01133aa