| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 1 |
0.1%
|
| 1 | A great deal | 872 |
70.9%
|
| 2 | Quite a lot | 262 |
21.3%
|
| 3 | Not very much | 77 |
6.3%
|
| 4 | None at all | 18 |
1.5%
|