| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 1 |
0.1%
|
| 1 | A great deal | 106 |
8.1%
|
| 2 | Quite a lot | 668 |
50.9%
|
| 3 | Not very much | 498 |
37.9%
|
| 4 | None at all | 40 |
3%
|