| Value | Category | Cases | |
|---|---|---|---|
| -1 | MIssing | 0 |
0%
|
| 0 | No | 470 |
19.6%
|
| 1 | Yes | 1746 |
72.8%
|
| 9 | Don't know | 184 |
7.7%
|
| 998 | Refused | 0 |
0%
|