Source: National Bureau of Economic Research  

Release: NBER Macrohistory Database  

Units:  Thousands of Pounds, Not Seasonally Adjusted

Frequency:  Monthly

Notes:

Series Is Presented Here As Three Variables--(1)--Original Data, 1868-1892 (2)--Original Data, 1890-1912 (3)--Original Data, 1911-1957. Data For June, 1880 Was Computed By NBER From Cumulative Figures. The Series Includes Crude Rubber, Gutta Percha, And Guayule. Latex In Rubber Equivalent Is Included Throughout The Series. Source: Monthly Summary Of Foreign Commerce

This NBER data series m07044a appears on the NBER website in Chapter 7 at http://www.nber.org/databases/macrohistory/contents/chapter07.html.

NBER Indicator: m07044a