| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 0 | No | 689 |
57.4%
|
| 1 | Yes | 503 |
41.9%
|
| 8 | Refused | 1 |
0.1%
|
| 9 | Don't know | 6 |
0.5%
|