| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very well | 1220 |
2.6%
|
| 2 | Well | 4215 |
9.1%
|
| 3 | Less | 30373 |
65.2%
|
| 4 | Don't know | 10754 |
23.1%
|
| Sysmiss | 25385 |