| Value | Category | Cases | |
|---|---|---|---|
| -99 | -99 (Don't know) | 2 |
0.1%
|
| -66 | -66 (refuse to answer) | 10 |
0.7%
|
| 0 | No | 1263 |
91.6%
|
| 1 | Yes | 104 |
7.5%
|