Source: National Bureau of Economic Research  

Release: NBER Macrohistory Database  

Units:  Thousands of Gross Tons, Not Seasonally Adjusted

Frequency:  Monthly

Series Is Presented Here As Two Variables--(1)--Original Data, 1877-1941 (2)--Original Data, 1941-1964. Data Are For Daily Averages. Source: Data For 1877-1921: F.R. Macaulay, The Movements Of Interest Rates, Bonds Yields, And Stock Prices In The U.S. Since 1856, NBER, 1938, Table 27. Data For 1922-1941: Iron Age, Successive Issues.

This NBER data series m01130a appears on the NBER website in Chapter 1 at http://www.nber.org/databases/macrohistory/contents/chapter01.html.

NBER Indicator: m01130a