| Value | Category | Cases | |
|---|---|---|---|
| 1 | Days | 117 |
19.6%
|
| 2 | Weeks | 181 |
30.3%
|
| 3 | Months | 272 |
45.5%
|
| 4 | Years | 28 |
4.7%
|
| Sysmiss | 3001 |