| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very poor | 26 |
2.8%
|
| 2 | Poor | 37 |
3.9%
|
| 3 | OK | 149 |
15.9%
|
| 4 | Good | 535 |
57%
|
| 5 | Very good | 192 |
20.4%
|
| Sysmiss | 81 |