| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 344 |
28.7%
|
| 1 | A great deal | 199 |
16.6%
|
| 2 | Quite a lot | 330 |
27.5%
|
| 3 | Not very much | 250 |
20.8%
|
| 4 | None at all | 77 |
6.4%
|