| Value | Category | Cases | |
|---|---|---|---|
| 1 | Rather bad | 28 |
2.3%
|
| 2 | Quite bad | 115 |
9.6%
|
| 3 | Neither good, nor bad | 323 |
26.9%
|
| 4 | Quite good | 620 |
51.7%
|
| 5 | Very good | 114 |
9.5%
|