Household serial number
Household weight, Supplement
Person number in sample unit
Age
Race
Educational attainment recode
School or college attendance
Occupation
Occupation, 2010 basis
Industry, 1990 basis
Weeks worked last year
Usual hours worked per week (last yr)
Hours usually worked per week at main job
Hours worked last week
Weeks unemployed last year
Paid by the hour
Total personal income
Wage and salary income
Welfare (public assistance) income
Years of formal education
ln of hourwage
ln of incwage