| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily or once or more per week | 3906 |
40.4%
|
| 2 | Once or twice per month | 597 |
6.2%
|
| 3 | Rearly | 1627 |
16.8%
|
| 4 | Never | 3460 |
35.8%
|
| 9 | 87 |
0.9%
|
|
| Sysmiss | 2332 |