| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 0 | No | 758 |
63.2%
|
| 1 | Yes | 409 |
34.1%
|
| 8 | Refused | 8 |
0.7%
|
| 9 | Don't know | 24 |
2%
|