| Value | Category | Cases | |
|---|---|---|---|
| -8 | Don't know | 8 |
11.9%
|
| 1 | 2 |
3%
|
|
| 2 | 2 |
3%
|
|
| 3 | 4 |
6%
|
|
| 4 | 51 |
76.1%
|
|
| Sysmiss | 3545 |