| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 1 |
0.3%
|
| -8 | Refused | 1 |
0.3%
|
| 1 | Yes | 139 |
38.6%
|
| 2 | No | 219 |
60.8%
|
| Sysmiss | 726 |