| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not filled | 12154 |
73.6%
|
| 1 | Yes | 582 |
3.5%
|
| 2 | No | 3783 |
22.9%
|
| 9 | Don't know | 0 |
0%
|
| Sysmiss | 18012 |