| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 362 |
28.8%
|
| 1 | Only sometimes | 516 |
41%
|
| 2 | Often | 109 |
8.7%
|
| 3 | Always | 77 |
6.1%
|
| 9 | Don't know | 194 |
15.4%
|
| 998 | Refused | 0 |
0%
|
| Sysmiss | 6 |