| Value | Category | Cases | |
|---|---|---|---|
| -9 | -9. Don't know | 0 |
0%
|
| -5 | -5. Zero | 0 |
0%
|
| 40 | 1 |
50%
|
|
| 41 | 1 |
50%
|
|
| Sysmiss | 997 |