| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very poor | 7 |
2.8%
|
| 2 | Poor | 47 |
18.7%
|
| 3 | OK | 136 |
54%
|
| 4 | Good | 59 |
23.4%
|
| 5 | Very good | 3 |
1.2%
|
| Sysmiss | 768 |