| Value | Category | Cases | |
|---|---|---|---|
| -2 | don't know | 0 |
0%
|
| -1 | refuse | 1 |
3.2%
|
| 1 | Yes | 28 |
90.3%
|
| 2 | No | 2 |
6.5%
|
| Sysmiss | 1018 |