| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very poor | 4 |
1.6%
|
| 2 | Poor | 36 |
14.3%
|
| 3 | OK | 133 |
52.8%
|
| 4 | Good | 73 |
29%
|
| 5 | Very good | 6 |
2.4%
|
| Sysmiss | 768 |