| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 76 |
4.6%
|
| 1 | A great deal | 123 |
7.5%
|
| 2 | Quite a lot | 412 |
25.2%
|
| 3 | Not very much | 671 |
41%
|
| 4 | None at all | 356 |
21.7%
|