| Value | Category | Cases | |
|---|---|---|---|
| -99 | -99 (Don't know) | 8 |
0.6%
|
| -66 | -66 (refuse to answer) | 1 |
0.1%
|
| 0 | No | 1098 |
79.6%
|
| 1 | Yes | 272 |
19.7%
|