| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 1 |
0.1%
|
| -1 | Don't know | 19 |
1.6%
|
| 1 | A great deal | 8 |
0.7%
|
| 2 | Quite a lot | 252 |
21%
|
| 3 | Not very much | 620 |
51.7%
|
| 4 | None at all | 300 |
25%
|