| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 6 |
0.9%
|
| -88 | Refused | 10 |
1.4%
|
| 0 | No | 557 |
80.3%
|
| 1 | Yes | 121 |
17.4%
|
| Missing value | 524 |