| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 20 |
0.1%
|
| 0 | No | 14377 |
51.9%
|
| 1 | Yes | 12950 |
46.7%
|
| 8 | Refused | 85 |
0.3%
|
| 9 | Don't know | 281 |
1%
|