| Value | Category | Cases | |
|---|---|---|---|
| 1 | A great deal | 26 |
2.5%
|
| 2 | Quite a lot | 171 |
16.3%
|
| 3 | Not very much | 399 |
38.1%
|
| 4 | None at all | 387 |
37%
|
| Sysmiss | 63 |
6%
|