| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 10 |
1.3%
|
| -88 | Refused | 36 |
4.6%
|
| 0 | No | 616 |
78.2%
|
| 1 | Yes | 126 |
16%
|
| Missing value | 430 |