| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all | 3858 |
39.6%
|
| 2 | Very little | 4799 |
49.2%
|
| 3 | To some extent | 828 |
8.5%
|
| 4 | A lot | 264 |
2.7%
|
| 7 | N/A | 273 | |
| 8 | Invalid | 3 | |
| 9 | Missing | 322 |