| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 11 |
0.9%
|
| 1 | A great deal | 41 |
3.4%
|
| 2 | Quite a lot | 469 |
39.1%
|
| 3 | Not very much | 504 |
42%
|
| 4 | None at all | 175 |
14.6%
|