| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 281 |
18.5%
|
| 1 | A great deal | 118 |
7.8%
|
| 2 | Quite a lot | 102 |
6.7%
|
| 3 | Not very much | 645 |
42.4%
|
| 4 | None at all | 374 |
24.6%
|