| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily or once or more per week | 43 |
7%
|
| 2 | Once or twice per month | 12 |
2%
|
| 3 | Rearly | 35 |
5.7%
|
| 4 | Never | 408 |
66.9%
|
| 9 | 112 |
18.4%
|
|
| Sysmiss | 11399 |