| Value | Category | Cases | |
|---|---|---|---|
| -1 | MIssing | 3 |
0.3%
|
| 0 | No | 352 |
29.3%
|
| 1 | Yes | 812 |
67.7%
|
| 9 | Don't know | 33 |
2.8%
|
| 998 | Refused | 0 |
0%
|