| Value | Category | Cases | |
|---|---|---|---|
| -99 | -99 (don't know) | 10 |
1.4%
|
| -66 | -66 (refuse to answer) | 4 |
0.6%
|
| 0 | No | 424 |
60.8%
|
| 1 | Yes | 259 |
37.2%
|
| Sysmiss | 419 |