| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 10 |
0.3%
|
| 1 | A great deal | 446 |
13.9%
|
| 2 | Quite a lot | 1129 |
35.3%
|
| 3 | Not very much | 1367 |
42.7%
|
| 4 | None at all | 248 |
7.8%
|