| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 15 |
1.2%
|
| 1 | A great deal | 218 |
17.6%
|
| 2 | Quite a lot | 449 |
36.3%
|
| 3 | Not very much | 410 |
33.1%
|
| 4 | None at all | 145 |
11.7%
|