| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 38 |
3.2%
|
| 1 | A great deal | 583 |
48.6%
|
| 2 | Quite a lot | 441 |
36.8%
|
| 3 | Not very much | 118 |
9.8%
|
| 4 | None at all | 20 |
1.7%
|