| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 1 |
0.1%
|
| 1 | A great deal | 188 |
15.7%
|
| 2 | Quite a lot | 446 |
37.2%
|
| 3 | Not very much | 411 |
34.3%
|
| 4 | None at all | 154 |
12.8%
|