| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 0 | Never | 162 |
13.5%
|
| 1 | Only sometimes | 277 |
23.1%
|
| 2 | Often | 293 |
24.4%
|
| 3 | Always | 299 |
24.9%
|
| 9 | Don't know | 168 |
14%
|
| 998 | Refused | 0 |
0%
|