CONTROL INFORMATION [TO BE COMPLETED BEFORE INTERVIEW]
Categories
Value
Category
-9
Don't know (spontaneous)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
18
21
24
25
27
30
35
36
38
39
42
43
45
50
52
56
75
85
87
92
96
100
340
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.