| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all | 6408 |
35.4%
|
| 2 | Very little | 9251 |
51%
|
| 3 | To some extent | 2016 |
11.1%
|
| 4 | A lot | 447 |
2.5%
|
| 7 | N/A | 369 | |
| 8 | Invalid | 3 | |
| 9 | Miss | 147 |