| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 128 |
10.7%
|
| 1 | A great deal | 300 |
25%
|
| 2 | Quite a lot | 667 |
55.6%
|
| 3 | Not very much | 91 |
7.6%
|
| 4 | None at all | 14 |
1.2%
|