Proportional employment in occupational categories, 1910 and 2000 Percent Occupational category 1910 2000 Farm laborers 17.4 0.6 Farmers 15.6 0.6 Private household service workers 6.0 0.5 Laborers, except farm and mine 10.4 3.7 Operatives and kindred 15.7 10.4 Craftsmen, foremen, and kindred 10.9 9.8 Sales workers 4.4 6.8 Managers, officials, and proprietors 6.5 14.2 Clerical and kindred 5.2 17.4 Service workers except private household 3.5 13.0 Professional, technical, and kindred 4.4 23.3 Percentages may not sum to 100.0 due to rounding.