| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 100 |
6.1%
|
| 1 | A great deal | 151 |
9.2%
|
| 2 | Quite a lot | 574 |
35%
|
| 3 | Not very much | 607 |
37.1%
|
| 4 | None at all | 206 |
12.6%
|