| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 6 |
0.5%
|
| -1 | Don't know | 13 |
1.1%
|
| 1 | A great deal | 5 |
0.4%
|
| 2 | Quite a lot | 82 |
6.8%
|
| 3 | Not very much | 488 |
40.7%
|
| 4 | None at all | 606 |
50.5%
|