| Value | Category | Cases | |
|---|---|---|---|
| 1 | days | 6 |
46.2%
|
| 2 | weeks | 1 |
7.7%
|
| 3 | months | 3 |
23.1%
|
| 4 | years | 2 |
15.4%
|
| 9 | special answers | 1 |
7.7%
|
| Sysmiss | 15972 |