| Value | Category | Cases | |
|---|---|---|---|
| -99 | -99 (Don't know) | 3 |
0.2%
|
| -66 | -66 (refuse to answer) | 1 |
0.1%
|
| 0 | No | 825 |
59.8%
|
| 1 | Yes | 550 |
39.9%
|