| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 26 |
0.6%
|
| -8 | Refused | 5 |
0.1%
|
| -5 | Not applicable | 0 |
0%
|
| -3 | Missing | 0 |
0%
|
| 1 | Yes | 868 |
18.7%
|
| 2 | No | 3742 |
80.6%
|
| Sysmiss | 3457 |