| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 6 |
3.7%
|
| -8 | Refused | 0 |
0%
|
| 1 | Yes | 12 |
7.4%
|
| 2 | No | 144 |
88.9%
|
| Sysmiss | 793 |