| Value | Category | Cases | |
|---|---|---|---|
| 1 | daily | 12 |
33.3%
|
| 2 | several days/week | 10 |
27.8%
|
| 3 | once/week | 6 |
16.7%
|
| 4 | once/month | 2 |
5.6%
|
| 5 | occasionally | 6 |
16.7%
|
| Sysmiss | 4629 |