| Value | Category | Cases | |
|---|---|---|---|
| 1 | Days | 7 |
21.2%
|
| 2 | Weeks | 4 |
12.1%
|
| 3 | Months | 20 |
60.6%
|
| 4 | Years | 2 |
6.1%
|
| Sysmiss | 4387 |