| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 38 |
3.2%
|
| 1 | A great deal | 216 |
18%
|
| 2 | Quite a lot | 296 |
24.6%
|
| 3 | Not very much | 339 |
28.2%
|
| 4 | None at all | 314 |
26.1%
|