| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 41 |
3.4%
|
| 1 | A great deal | 476 |
39.7%
|
| 2 | Quite a lot | 491 |
40.9%
|
| 3 | Not very much | 142 |
11.8%
|
| 4 | None at all | 50 |
4.2%
|