CONTROL INFORMATION [TO BE COMPLETED BEFORE INTERVIEW]
Categories
Value
Category
-9
Don't know (spontaneous)
2
3
4
5
6
7
8
9
10
11
12
13
15
18
20
22
25
30
34
38
39
40
79
96
100
142
328
Sysmiss
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.