| Value | Category | Cases | |
|---|---|---|---|
| -1 | MIssing | 5 |
0.2%
|
| 0 | No | 613 |
25.6%
|
| 1 | Yes | 1654 |
68.9%
|
| 9 | Don't know | 127 |
5.3%
|
| 998 | Refused | 0 |
0%
|