| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 15 |
0.5%
|
| 1 | A great deal | 1198 |
37.4%
|
| 2 | Quite a lot | 1329 |
41.5%
|
| 3 | Not very much | 580 |
18.1%
|
| 4 | None at all | 78 |
2.4%
|