| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 26 |
2.2%
|
| 1 | A great deal | 354 |
29.5%
|
| 2 | Quite a lot | 740 |
61.7%
|
| 3 | Not very much | 69 |
5.8%
|
| 4 | None at all | 11 |
0.9%
|