| Value | Category | Cases | |
|---|---|---|---|
| 1 | Years | 11 |
61.1%
|
| 2 | Months | 6 |
33.3%
|
| 3 | Weeks | 0 |
0%
|
| 7 | Not Applicable | 1 |
5.6%
|
| Sysmiss | 923 |