If option 2 or 3 in A.18, estimate duration of the whole interview
Categories
Value
Category
0
2
3
5
7
8
9
10
15
18
20
21
24
25
26
27
28
30
32
35
37
38
40
45
47
48
50
52
55
57
58
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.