| Value | Category | Cases | |
|---|---|---|---|
| 1 | Days | 23 |
26.7%
|
| 2 | Weeks | 17 |
19.8%
|
| 3 | Months | 40 |
46.5%
|
| 4 | Years | 6 |
7%
|
| Sysmiss | 2978 |