| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 416 |
34.6%
|
| 1 | A great deal | 53 |
4.4%
|
| 2 | Quite a lot | 139 |
11.6%
|
| 3 | Not very much | 222 |
18.5%
|
| 4 | None at all | 373 |
31%
|