| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 6 |
0.5%
|
| -1 | Don't know | 143 |
11.4%
|
| 1 | A great deal | 72 |
5.7%
|
| 2 | Quite a lot | 148 |
11.8%
|
| 3 | Not very much | 455 |
36.2%
|
| 4 | None at all | 433 |
34.4%
|