| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not filled | 252 |
0.9%
|
| 1 | Yes | 7948 |
28.1%
|
| 2 | No | 20038 |
71%
|
| 9 | Don't know | 0 |
0%
|
| Sysmiss | 6293 |