| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 2 |
0.2%
|
| 1 | A great deal | 68 |
5.2%
|
| 2 | Quite a lot | 436 |
33.2%
|
| 3 | Not very much | 687 |
52.3%
|
| 4 | None at all | 120 |
9.1%
|