| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 1 |
0.1%
|
| -1 | Don't know | 71 |
5.5%
|
| 1 | A great deal | 30 |
2.3%
|
| 2 | Quite a lot | 347 |
26.9%
|
| 3 | Not very much | 520 |
40.3%
|
| 4 | None at all | 320 |
24.8%
|