| Value | Category | Cases | |
|---|---|---|---|
| -1 | MIssing | 9 |
0.8%
|
| 0 | No | 313 |
26.1%
|
| 1 | Yes | 868 |
72.3%
|
| 9 | Don't know | 10 |
0.8%
|
| 998 | Refused | 0 |
0%
|