| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very poor | 6 |
2.1%
|
| 2 | Poor | 42 |
14.6%
|
| 3 | OK | 160 |
55.6%
|
| 4 | Good | 74 |
25.7%
|
| 5 | Very good | 6 |
2.1%
|
| Sysmiss | 732 |