| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 29 |
2.4%
|
| 1 | A great deal | 29 |
2.4%
|
| 2 | Quite a lot | 325 |
26.6%
|
| 3 | Not very much | 568 |
46.4%
|
| 4 | None at all | 272 |
22.2%
|