| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 181 |
11.9%
|
| 1 | A great deal | 142 |
9.3%
|
| 2 | Quite a lot | 149 |
9.8%
|
| 3 | Not very much | 696 |
45.8%
|
| 4 | None at all | 352 |
23.2%
|