| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 262 |
21.8%
|
| 1 | A great deal | 295 |
24.6%
|
| 2 | Quite a lot | 398 |
33.2%
|
| 3 | Not very much | 187 |
15.6%
|
| 4 | None at all | 58 |
4.8%
|