| Value | Category | Cases | |
|---|---|---|---|
| 1 | daily | 6 |
23.1%
|
| 2 | several days/week | 2 |
7.7%
|
| 3 | once/week | 3 |
11.5%
|
| 4 | once/month | 10 |
38.5%
|
| 5 | occasionally | 5 |
19.2%
|
| Sysmiss | 4639 |