| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 281 |
23.4%
|
| 1 | A great deal | 39 |
3.2%
|
| 2 | Quite a lot | 59 |
4.9%
|
| 3 | Not very much | 153 |
12.7%
|
| 4 | None at all | 671 |
55.8%
|