| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 21 |
1.8%
|
| 1 | A great deal | 639 |
53.3%
|
| 2 | Quite a lot | 432 |
36%
|
| 3 | Not very much | 85 |
7.1%
|
| 4 | None at all | 23 |
1.9%
|