| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 464 |
38.7%
|
| 1 | A few times | 308 |
25.7%
|
| 2 | Often | 229 |
19.1%
|
| 8 | Refused | 5 |
0.4%
|
| 9 | Don’t know | 194 |
16.2%
|