| Value | Category | Cases | |
|---|---|---|---|
| -999 | Refuse to answer | 9 |
0.9%
|
| -998 | Don't know | 4 |
0.4%
|
| 0 | No | 24 |
2.5%
|
| 1 | Yes | 929 |
96.2%
|
| Sysmiss | 1215 |