| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 5 |
0.3%
|
| -1 | Don't know | 30 |
1.7%
|
| 1 | A great deal | 19 |
1.1%
|
| 2 | Quite a lot | 219 |
12.4%
|
| 3 | Not very much | 316 |
17.9%
|
| 4 | None at all | 1173 |
66.6%
|