| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 4 |
0.3%
|
| 1 | A great deal | 255 |
19.4%
|
| 2 | Quite a lot | 739 |
56.3%
|
| 3 | Not very much | 293 |
22.3%
|
| 4 | None at all | 22 |
1.7%
|