| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 36 |
3%
|
| 1 | A great deal | 73 |
6.1%
|
| 2 | Quite a lot | 185 |
15.4%
|
| 3 | Not very much | 563 |
46.9%
|
| 4 | None at all | 343 |
28.6%
|