household income
0 = $10,000 or less
1 = $10,001 - $20,000
2 = $20,001 - $30,000
3 = $30,001 - $40,000
4 = $40,001 - $50,000
5 = $50,001 - $60,000
6 = $60,001 - $70,000
7 = $70,001 - $80,000
8 = $80,001 - $90,000
9 = $90,001 - $100,000
10 = more than $100,000
99 = (no response)

is married?
0 = no
1 = yes

employment status
0 = unemployed
1 = part-time
2 = full-time

love and relationships: how often do you think about that aspect of your life?
1 = never
2 = rarely
3 = at least once on most days
4 = many times each day