| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 2 |
0.2%
|
| -1 | Don't know | 10 |
0.8%
|
| 1 | A great deal | 33 |
2.8%
|
| 2 | Quite a lot | 367 |
30.6%
|
| 3 | Not very much | 534 |
44.5%
|
| 4 | None at all | 254 |
21.2%
|