| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 185 |
12.2%
|
| 1 | A great deal | 173 |
11.4%
|
| 2 | Quite a lot | 149 |
9.8%
|
| 3 | Not very much | 650 |
42.8%
|
| 4 | None at all | 363 |
23.9%
|