Source: National Bureau of Economic Research  

Release: NBER Macrohistory Database  

Units:  Average Number per Week, Not Seasonally Adjusted

Frequency:  Monthly

Series Is Presented Here As Two Variables--(1)-- Original Data, 1935-1949 (2)--Original Data, 1946-1968. Figures Are Monthly Averages Of Daily Quotations. Source: Bls, "Spot Market Prices, " Summary Ls 44-2297, 1935-February, 1948, And "Daily Index Numbers And Spot Primary Market Prices For 28 Commodities" (Mimeographed) Thereafter.

This NBER data series m04201a appears on the NBER website in Chapter 4 at http://www.nber.org/databases/macrohistory/contents/chapter04.html.

NBER Indicator: m04201a