| Value | Category | Cases | |
|---|---|---|---|
| 1 | Days | 7 |
10.1%
|
| 2 | Weeks | 14 |
20.3%
|
| 3 | Months | 23 |
33.3%
|
| 4 | Years | 25 |
36.2%
|
| Sysmiss | 540 |