| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 11 |
1.1%
|
| 1 | Very good | 5 |
0.5%
|
| 2 | Fairly good | 41 |
4.1%
|
| 3 | Bad | 255 |
25.4%
|
| 4 | Very bad | 692 |
68.9%
|