| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very badly | 3816 |
68.8%
|
| 2 | Fairly badly | 1098 |
19.8%
|
| 3 | Fairly well | 450 |
8.1%
|
| 4 | Very well | 186 |
3.4%
|
| Sysmiss | 3925 |