| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 25 |
2.1%
|
| 1 | A great deal | 332 |
27.7%
|
| 2 | Quite a lot | 757 |
63.1%
|
| 3 | Not very much | 76 |
6.3%
|
| 4 | None at all | 10 |
0.8%
|