| Value | Category | Cases | |
|---|---|---|---|
| -1 | MIssing | 3 |
0.1%
|
| 0 | No | 830 |
34.5%
|
| 1 | Yes | 1532 |
63.6%
|
| 9 | Don't know | 42 |
1.7%
|
| 998 | Refused | 0 |
0%
|