| Value | Category | Cases | |
|---|---|---|---|
| 1 | days | 44 |
14.4%
|
| 2 | months | 116 |
37.9%
|
| 3 | weeks | 38 |
12.4%
|
| 4 | years | 108 |
35.3%
|
| 7 | refused | 0 |
0%
|
| 9 | missing | 0 |
0%
|
| Sysmiss | 5585 |