| Value | Category | Cases | |
|---|---|---|---|
| -9 | Refuse to answer | 0 |
0%
|
| -8 | Do not know | 63 |
4.1%
|
| 0 | No | 447 |
28.8%
|
| 1 | Yes | 1043 |
67.2%
|
| Sysmiss | 9505 |