| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 2 |
0.1%
|
| -1 | Don't know | 59 |
2.9%
|
| 1 | A great deal | 318 |
15.8%
|
| 2 | Quite a lot | 1317 |
65.5%
|
| 3 | Not very much | 291 |
14.5%
|
| 4 | None at all | 25 |
1.2%
|