| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 34 |
2.8%
|
| 1 | A great deal | 602 |
50%
|
| 2 | Quite a lot | 331 |
27.5%
|
| 3 | Not very much | 157 |
13.1%
|
| 4 | None at all | 79 |
6.6%
|