| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 1 |
0.1%
|
| 1 | A great deal | 182 |
15.2%
|
| 2 | Quite a lot | 618 |
51.5%
|
| 3 | Not very much | 334 |
27.8%
|
| 4 | None at all | 65 |
5.4%
|