| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 23 |
1.9%
|
| 1 | A great deal | 239 |
19.9%
|
| 2 | Quite a lot | 448 |
37.3%
|
| 3 | Not very much | 329 |
27.4%
|
| 4 | None at all | 161 |
13.4%
|