| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 534 |
44.5%
|
| 1 | Only sometimes | 420 |
35%
|
| 2 | Often | 108 |
9%
|
| 3 | Always | 63 |
5.3%
|
| 9 | Don't know | 75 |
6.3%
|