| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 12 |
1%
|
| 1 | A great deal | 380 |
30.7%
|
| 2 | Quite a lot | 468 |
37.8%
|
| 3 | Not very much | 277 |
22.4%
|
| 4 | None at all | 100 |
8.1%
|