| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 8 |
1.2%
|
| -88 | Refused | 9 |
1.3%
|
| 0 | No | 530 |
77.3%
|
| 1 | Yes | 139 |
20.3%
|
| Missing value | 532 |