| Value | Category | Cases | |
|---|---|---|---|
| 1 | several times a week | 425 |
20%
|
| 2 | about once a week | 332 |
15.6%
|
| 3 | about once a month | 289 |
13.6%
|
| 4 | occasionally | 1080 |
50.8%
|
| Sysmiss | 6660 |