| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very well | 1391 |
2.8%
|
| 2 | Well | 4754 |
9.7%
|
| 3 | Less | 5787 |
11.8%
|
| 4 | Don't know | 37005 |
75.6%
|
| Sysmiss | 27733 |