| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 50 |
2.4%
|
| 1 | A great deal | 220 |
10.6%
|
| 2 | Quite a lot | 336 |
16.3%
|
| 3 | Not very much | 963 |
46.6%
|
| 4 | None at all | 498 |
24.1%
|