| Value | Category | Cases | |
|---|---|---|---|
| 1 | Days | 1 |
3.4%
|
| 2 | Weeks | 3 |
10.3%
|
| 3 | Months | 9 |
31%
|
| 4 | Years | 16 |
55.2%
|
| Sysmiss | 4391 |