| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very good | 36 |
2.1%
|
| 2 | Good | 255 |
15.1%
|
| 3 | Fair | 437 |
25.8%
|
| 4 | Poor | 545 |
32.2%
|
| 5 | Very poor | 400 |
23.6%
|
| 6 | DK | 21 |
1.2%
|
| Sysmiss | 286 |