| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | No | 180 |
15.3%
|
| 1 | Yes | 271 |
23%
|
| 8 | Refused | 12 |
1%
|
| 9 | Don't know | 713 |
60.6%
|