| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 60 |
3.7%
|
| 1 | A great deal | 171 |
10.4%
|
| 2 | Quite a lot | 430 |
26.3%
|
| 3 | Not very much | 748 |
45.7%
|
| 4 | None at all | 229 |
14%
|