| Value | Category | Cases | |
|---|---|---|---|
| -8 | Don't know | 3 |
15.8%
|
| 0 | 11 |
57.9%
|
|
| 1 | 4 |
21.1%
|
|
| 2 | 1 |
5.3%
|
|
| Sysmiss | 3593 |