| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 320 |
19.5%
|
| 1 | A great deal | 228 |
13.9%
|
| 2 | Quite a lot | 495 |
30.2%
|
| 3 | Not very much | 434 |
26.5%
|
| 4 | None at all | 161 |
9.8%
|