| Value | Category | Cases | |
|---|---|---|---|
| 1 | very good | 674 |
8.6%
|
| 2 | good | 2573 |
32.7%
|
| 3 | satisfactory | 3599 |
45.7%
|
| 4 | bad | 866 |
11%
|
| 5 | very bad | 160 |
2%
|