| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 2 |
0.2%
|
| 1 | A great deal | 150 |
11.4%
|
| 2 | Quite a lot | 637 |
48.5%
|
| 3 | Not very much | 470 |
35.8%
|
| 4 | None at all | 54 |
4.1%
|