| Value | Category | Cases | |
|---|---|---|---|
| 1 | days | 92 |
33.9%
|
| 2 | months | 120 |
44.3%
|
| 3 | years | 59 |
21.8%
|
| 9 | special answers | 0 |
0%
|
| Sysmiss | 15714 |