| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very well | 672 |
1.9%
|
| 2 | Well | 1500 |
4.2%
|
| 3 | Less | 8556 |
24%
|
| 4 | Don't know | 24984 |
70%
|
| Sysmiss | 34460 |