| Value | Category | Cases | |
|---|---|---|---|
| -99 | -99 (Don't know) | 2 |
0.3%
|
| -66 | -66 (refuse to answer) | 27 |
3.8%
|
| 0 | No | 504 |
70.3%
|
| 1 | Yes | 184 |
25.7%
|
| Sysmiss | 662 |