| Value | Category | Cases | |
|---|---|---|---|
| -2 | Don't know | 57 |
2.5%
|
| -1 | Refused | 2 |
0.1%
|
| 1 | Yes | 693 |
30%
|
| 2 | No | 1559 |
67.5%
|
| Sysmiss | 688 |