| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 1 |
0.1%
|
| -1 | Don't know | 83 |
6.4%
|
| 1 | A great deal | 19 |
1.5%
|
| 2 | Quite a lot | 210 |
16.3%
|
| 3 | Not very much | 454 |
35.2%
|
| 4 | None at all | 522 |
40.5%
|