| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 25 |
2.1%
|
| 1 | A great deal | 306 |
25.5%
|
| 2 | Quite a lot | 780 |
65%
|
| 3 | Not very much | 81 |
6.8%
|
| 4 | None at all | 8 |
0.7%
|