| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 1 |
0.1%
|
| 1 | A great deal | 266 |
20.3%
|
| 2 | Quite a lot | 785 |
59.8%
|
| 3 | Not very much | 252 |
19.2%
|
| 4 | None at all | 9 |
0.7%
|