| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 14 |
0.8%
|
| 1 | A great deal | 124 |
7.1%
|
| 2 | Quite a lot | 350 |
20.1%
|
| 3 | Not very much | 630 |
36.2%
|
| 4 | None at all | 623 |
35.8%
|