| Value | Category | Cases | |
|---|---|---|---|
| 1 | several times a week | 472 |
16.6%
|
| 2 | about once a week | 392 |
13.8%
|
| 3 | about once a month | 373 |
13.1%
|
| 4 | occasionally | 1601 |
56.4%
|
| Sysmiss | 5948 |