| Value | Category | Cases | |
|---|---|---|---|
| 1 | daily | 13 |
38.2%
|
| 2 | several days/week | 11 |
32.4%
|
| 3 | once/week | 4 |
11.8%
|
| 4 | once/month | 0 |
0%
|
| 5 | occasionally | 6 |
17.6%
|
| Sysmiss | 4631 |