| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 15 |
1.3%
|
| -1 | Don't know | 65 |
5.4%
|
| 1 | A great deal | 15 |
1.3%
|
| 2 | Quite a lot | 201 |
16.8%
|
| 3 | Not very much | 500 |
41.7%
|
| 4 | None at all | 404 |
33.7%
|