| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 0 | Never | 231 |
19.3%
|
| 1 | Only sometimes | 267 |
22.3%
|
| 2 | Often | 254 |
21.2%
|
| 3 | Always | 297 |
24.8%
|
| 9 | Don't know | 150 |
12.5%
|