Value | Category | Cases | |
---|---|---|---|
1 | dont know | 34 |
47.9%
|
2 | months | 5 |
7%
|
3 | years | 32 |
45.1%
|
7 | refused | 0 |
0%
|
9 | missing | 0 |
0%
|
Sysmiss | 5820 |