| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 25 |
2%
|
| 1 | A great deal | 199 |
16.1%
|
| 2 | Quite a lot | 477 |
38.6%
|
| 3 | Not very much | 402 |
32.5%
|
| 4 | None at all | 134 |
10.8%
|