| Value | Category | Cases | |
|---|---|---|---|
| 1 | Days | 3 |
0.1%
|
| 2 | Weeks | 11 |
0.4%
|
| 3 | Months | 2691 |
94.4%
|
| 4 | Years | 146 |
5.1%
|
| Sysmiss | 62 |