| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 56 |
4.7%
|
| 1 | A great deal | 58 |
4.8%
|
| 2 | Quite a lot | 172 |
14.3%
|
| 3 | Not very much | 226 |
18.8%
|
| 4 | None at all | 691 |
57.4%
|