| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 1 |
0.1%
|
| 1 | A great deal | 278 |
23.2%
|
| 2 | Quite a lot | 612 |
51%
|
| 3 | Not very much | 252 |
21%
|
| 4 | None at all | 57 |
4.8%
|