| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all | 5006 |
27.6%
|
| 2 | Very little | 7584 |
41.9%
|
| 3 | To some extent | 4556 |
25.2%
|
| 4 | A lot | 961 |
5.3%
|
| 7 | N/A | 370 | |
| 8 | Invalid | 4 | |
| 9 | Miss | 160 |