Source: National Bureau of Economic Research  

Release: NBER Macrohistory Database  

Units:  Percent of Total Membership, Not Seasonally Adjusted

Frequency:  Monthly

Series Is Presented Here As Two Variables--(1)--Original Data, 1888-1926 (2)--Original Data, 1921-1939. Data Are End Of Month. Ministry Of Labour Gazette Contains Data For Manual Workers. Source: Abstact Of Labor Statistics, Particularly 10Th, 16Th, And 19Th Abstracts.

This NBER data series m08004a appears on the NBER website in Chapter 8 at http://www.nber.org/databases/macrohistory/contents/chapter08.html.

NBER Indicator: m08004a