| Value | Category | Cases | |
|---|---|---|---|
| 1 | Months | 2 |
22.2%
|
| 2 | Years | 3 |
33.3%
|
| 9 | 4 |
44.4%
|
|
| 998 | DK | 0 |
0%
|
| Sysmiss | 1205 |