| Value | Category | Cases | |
|---|---|---|---|
| -7 | Not applicable | 0 |
0%
|
| 0 | No | 493 |
29.7%
|
| 1 | Yes | 1100 |
66.2%
|
| 888 | Don't know | 64 |
3.9%
|
| 999 | Refused | 5 |
0.3%
|