| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very poor | 9 |
2.5%
|
| 2 | Poor | 64 |
18%
|
| 3 | OK | 167 |
46.9%
|
| 4 | Good | 90 |
25.3%
|
| 5 | Very good | 26 |
7.3%
|
| Sysmiss | 664 |