| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 74 |
6.2%
|
| 1 | A great deal | 84 |
7%
|
| 2 | Quite a lot | 359 |
29.8%
|
| 3 | Not very much | 458 |
38.1%
|
| 4 | None at all | 228 |
19%
|