| Value | Category | Cases | |
|---|---|---|---|
| -99 | -99 (don't know) | 3 |
0.9%
|
| -66 | -66 (refuse to answer) | 0 |
0%
|
| 0 | No | 222 |
64.9%
|
| 1 | Yes | 117 |
34.2%
|
| Sysmiss | 774 |