| Value | Category | Cases | |
|---|---|---|---|
| -99 | -99 (Don't know) | 28 |
3.9%
|
| -66 | -66 (refuse to answer) | 4 |
0.6%
|
| 0 | No | 507 |
70.7%
|
| 1 | Yes | 178 |
24.8%
|
| Sysmiss | 662 |