| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 36 |
3%
|
| 1 | A great deal | 226 |
18.8%
|
| 2 | Quite a lot | 619 |
51.6%
|
| 3 | Not very much | 271 |
22.6%
|
| 4 | None at all | 48 |
4%
|