Source: National Bureau of Economic Research  

Release: NBER Macrohistory Database  

Units:  Thousands of Short Tons, Not Seasonally Adjusted

Frequency:  Monthly

Series Is Presented Here As Two Variables--(1)--Original Data, 1919-1946 (2)--Original Data, 1933-1955 Figures Represent The Output Of Primary Refineries Including From Duty-Free Imported Raw Material Through 1946; Beginning In 1947, From All Imported Raw Material. The Tariff On Copper Was Suspended During 1947 (See Survey Of Current Business, 1955 Supplement, Footnote 7 To P. 159). This Series Is Believed To Be Comparable To Series 01177 (Refined Copper Shipments). Source: American Bureau Of Metal Statistics Yearbook, 1947 And Following Issues; Metal Statistics, 1941 And Following Issues.

This NBER data series m01247b appears on the NBER website in Chapter 1 at http://www.nber.org/databases/macrohistory/contents/chapter01.html.

NBER Indicator: m01247b