| Value | Category | Cases | |
|---|---|---|---|
| -2 | Refuse | 0 |
0%
|
| -1 | Don't know | 0 |
0%
|
| 0 | No | 2257 |
97.6%
|
| 1 | Yes | 56 |
2.4%
|
| Sysmiss | 2909 |