| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 4 |
0.3%
|
| 1 | A great deal | 239 |
19.5%
|
| 2 | Quite a lot | 766 |
62.6%
|
| 3 | Not very much | 177 |
14.5%
|
| 4 | None at all | 37 |
3%
|