| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 10 |
0.8%
|
| 1 | A great deal | 85 |
7.1%
|
| 2 | Quite a lot | 383 |
31.9%
|
| 3 | Not very much | 525 |
43.8%
|
| 4 | None at all | 197 |
16.4%
|