| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 11 |
0.7%
|
| 1 | Rather bad | 220 |
14.7%
|
| 2 | Quite bad | 413 |
27.5%
|
| 3 | Neither good, nor bad | 738 |
49.2%
|
| 4 | Quite good | 95 |
6.3%
|
| 5 | Very good | 23 |
1.5%
|