Dataset: immwork.dat Source: R. Higgs (1971). "Race, Skills, and Earnings: American Immigrants in 1909", The Journal of Economic History, Vol. 31, #2, pp.420-428. Description: Average weekly earnings, English speaking and literacy rates, and Tenure in U.S. for immigrants from 35 nations working in mining and manufacturing, 1909. Variables / Columns Nationality 1-25 Average weekly wage 30-34 /* in dollars */ % Speaking English 38-42 % Literate 46-50 % Living in U.S. more than 5 years 54-58