| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 0 | Never | 438 |
36.5%
|
| 1 | Only sometimes | 473 |
39.4%
|
| 2 | Often | 148 |
12.3%
|
| 3 | Always | 74 |
6.2%
|
| 9 | Don't know | 66 |
5.5%
|