| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 29 |
2.4%
|
| 1 | A great deal | 95 |
7.8%
|
| 2 | Quite a lot | 580 |
47.4%
|
| 3 | Not very much | 391 |
32%
|
| 4 | None at all | 128 |
10.5%
|