| Value | Category | Cases | |
|---|---|---|---|
| -1 | MIssing | 1 |
0.1%
|
| 0 | No | 347 |
28.9%
|
| 1 | Yes | 826 |
68.8%
|
| 9 | Don't know | 26 |
2.2%
|
| 998 | Refused | 0 |
0%
|