| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 3 |
0.3%
|
| -1 | Don't know | 11 |
1.1%
|
| 1 | A great deal | 14 |
1.4%
|
| 2 | Quite a lot | 145 |
14.5%
|
| 3 | Not very much | 346 |
34.6%
|
| 4 | None at all | 481 |
48.1%
|