| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all | 3722 |
20.5%
|
| 2 | Very little | 8210 |
45.3%
|
| 3 | To some extent | 4713 |
26%
|
| 4 | A lot | 1485 |
8.2%
|
| 7 | N/A | 369 | |
| 8 | Invalid | 5 | |
| 9 | Miss | 137 |