| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very poor | 6 |
2.1%
|
| 2 | Poor | 50 |
17.4%
|
| 3 | OK | 173 |
60.1%
|
| 4 | Good | 54 |
18.8%
|
| 5 | Very good | 5 |
1.7%
|
| Sysmiss | 732 |