| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 38 |
1.2%
|
| 1 | A great deal | 488 |
15.3%
|
| 2 | Quite a lot | 1365 |
42.7%
|
| 3 | Not very much | 1105 |
34.5%
|
| 4 | None at all | 204 |
6.4%
|