| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 200 |
16.6%
|
| 1 | A great deal | 175 |
14.5%
|
| 2 | Quite a lot | 361 |
30%
|
| 3 | Not very much | 272 |
22.6%
|
| 4 | None at all | 195 |
16.2%
|