Source: National Bureau of Economic Research  

Release: NBER Macrohistory Database  

Units:  Millions of Metric Tons, Not Seasonally Adjusted

Frequency:  Monthly

Series Is Presented Here As Two Variables--(1)--Original Data, 1901-1923 (2)--Original Data, 1923-1935. Data Exclude Eastern Upper Silesia. The Ruhr Miners Were On Strike In May, 1924. Source: Wirtschaft Und Statistiches.

This NBER data series m01122b appears on the NBER website in Chapter 1 at http://www.nber.org/databases/macrohistory/contents/chapter01.html.

NBER Indicator: m01122b