| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 60 |
3.7%
|
| 1 | A great deal | 210 |
12.8%
|
| 2 | Quite a lot | 556 |
33.9%
|
| 3 | Not very much | 642 |
39.2%
|
| 4 | None at all | 170 |
10.4%
|