NLS ID
interview year
birth year
age in current year
1=white, 2=black, 3=other
1 if married, spouse present
1 if never married
current grade completed
1 if college graduate
1 if not SMSA
1 if central city
1 if south
industry of employment
occupation
1 if union
weeks unemployed last year
total work experience
job tenure, in years
usual hours worked
weeks worked last year
ln(wage/GNP deflator)