| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 22 |
0.1%
|
| 0 | No | 20205 |
72.9%
|
| 1 | Yes | 6748 |
24.3%
|
| 8 | Refused | 150 |
0.5%
|
| 9 | Don't know | 588 |
2.1%
|