| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very poor | 2 |
0.8%
|
| 2 | Poor | 17 |
6.9%
|
| 3 | OK | 64 |
26.1%
|
| 4 | Good | 129 |
52.7%
|
| 5 | Very good | 33 |
13.5%
|
| Sysmiss | 775 |