| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 164 |
10%
|
| 1 | A great deal | 85 |
5.2%
|
| 2 | Quite a lot | 304 |
18.6%
|
| 3 | Not very much | 688 |
42%
|
| 4 | None at all | 397 |
24.2%
|