| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very well | 2150 |
4.1%
|
| 2 | Well | 5498 |
10.5%
|
| 3 | Less | 4523 |
8.6%
|
| 4 | Don't Know | 40377 |
76.8%
|
| Sysmiss | 29230 |