| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 33 |
1.4%
|
| 0 | No | 865 |
36%
|
| 1 | Yes | 1025 |
42.7%
|
| 9 | Don't know | 477 |
19.9%
|
| 998 | Refused | 0 |
0%
|