| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 4 |
0.3%
|
| 0 | No | 454 |
37.8%
|
| 1 | Yes | 734 |
61.2%
|
| 8 | Refused | 3 |
0.3%
|
| 9 | Don't know | 5 |
0.4%
|