| Value | Category | Cases | |
|---|---|---|---|
| -9 | Refuse to answer | 1 |
0.1%
|
| -8 | Do not know | 10 |
0.6%
|
| 0 | No | 760 |
42.8%
|
| 1 | Yes | 1004 |
56.6%
|
| Sysmiss | 9283 |