| Value | Category | Cases | |
|---|---|---|---|
| -9 | -9. Don't Know | 2 |
40%
|
| -8 | -8. Refused | 0 |
0%
|
| 300 | 2 |
40%
|
|
| 350 | 1 |
20%
|
|
| Sysmiss | 994 |