| Value | Category | Cases | |
|---|---|---|---|
| -5 | -5. None | 0 |
0%
|
| 8 | 8. Refused | 0 |
0%
|
| 9 | 9. Don't know | 2 |
100%
|
| 98 | 98. Refused | 0 |
0%
|
| 99 | 99. Don't know | 0 |
0%
|
| Sysmiss | 97 |