| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 17 |
0.5%
|
| 1 | A great deal | 436 |
13.6%
|
| 2 | Quite a lot | 1122 |
35.1%
|
| 3 | Not very much | 1265 |
39.5%
|
| 4 | None at all | 360 |
11.3%
|