| Value | Category | Cases | |
|---|---|---|---|
| -2 | don't know | 38 |
10.2%
|
| -1 | refuse | 0 |
0%
|
| 1 | Yes | 97 |
25.9%
|
| 2 | No | 239 |
63.9%
|
| Sysmiss | 675 |