| Value | Category | Cases | |
|---|---|---|---|
| -999 | Refuse to answer | 8 |
0.8%
|
| -998 | Don't know | 14 |
1.4%
|
| 0 | No | 73 |
7.6%
|
| 1 | Yes | 871 |
90.2%
|
| Sysmiss | 1215 |