| Value | Category | Cases | |
|---|---|---|---|
| -2 | Don't know | 3 |
37.5%
|
| 9 | 2 |
25%
|
|
| 15 | 1 |
12.5%
|
|
| 28 | 1 |
12.5%
|
|
| 30 | 1 |
12.5%
|
|
| Sysmiss | 192 |