Race (r0002300)  n= 5225  mean=  1.296    min=  1    max=3
'76 Grade level
If lived in SMSA in 1966 (r0002455=1,2)
If lived in SMSA in 1976 (r0437515=1,2)
If any 4-year college nearby (r0004000!=4)
If lived in South in 1976 (r0437511=1)
'76 Wage
'76 experience, (10 + age66) - grade76 - 6)
'76 experience, exp76 ^2/100
'76 age (age66 +10)
'76 age squared (age76^2)
If lived in Region 2 (region= MidAtl)
If lived in Region 3 (region= ENC)
If lived in Region 4 (region= WNC)
If lived in Region 5 (region= SA )
If lived in Region 6 (region= ESC)
If lived in Region 7 (region= WSC)
If lived in Region 8 (region= M  )
If lived in Region 9 (region= P  )
If lived with both parents at age 14
If lived with mother only at age 14
If father has no formal education
If mother has no formal education
Mean grade level of father
Mean grade level of mother
If mgrade> 12 & fgrade> 12 (famed=1)
If mgrade>=12 & fgrade>=12 (famed=2)
If mgrade==12 & fgrade==12 (famed=3)
If mgrade>=12 & fgrade==-1 (famed=4)
If fgrade>=12 (famed=5)
If mgrade>=12 & fgrade> -1 (famed=6)
If mgrade>=9  & fgrade>=9 (famed=7)
If mgrade> -1 & fgrade> -1 (famed=8)