| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very poor | 9 |
3.4%
|
| 2 | Poor | 11 |
4.2%
|
| 3 | OK | 53 |
20.1%
|
| 4 | Good | 137 |
51.9%
|
| 5 | Very good | 54 |
20.5%
|
| Sysmiss | 756 |