| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 2 |
0.2%
|
| 0 | No | 422 |
35.2%
|
| 1 | Yes | 758 |
63.2%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 18 |
1.5%
|