Year first started in paid employment
6666 = Not applicable
7777 = Refusal
8888 = Don't know
9999 = No answer

Year first left parents
0 = Still in parental home, never left 2 months
1111 = Never lived with a parent
7777 = Refusal
8888 = Don't know
9999 = No answer

Get married, ideal age.
0 = No ideal age
111 = Should never get married
777 = Refusal
888 = Don't know
999 = No answer

Retire permanently, ideal age.
0 = No ideal age
111 = Should never retire permanently
222 = Should never be in paid work
777 = Refusal
888 = Don't know
999 = No answer

Retire permanently, age too young.
0 = Never too young
111 = Should never retire permanently
222 = Should never be in paid work
777 = Refusal
888 = Don't know
999 = No answer

Age of respondent, calculated
999 = Not available

Year of birth
7777 = Refusal
8888 = Don't know
9999 = No answer

Your usual net income
666666666 = Not applicable
777777777 = Refusal
888888888 = Don't know
999999999 = No answer

1 = Elementary
2 = Lower Secondary
3 = Higher Secondary
4 = University

0 = Man
1 = Woman