| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. twice a day | 107 |
3.4%
|
| 1 | 1. every day | 866 |
27.5%
|
| 2 | 2. 2-4 times per week | 1535 |
48.7%
|
| 3 | 3. once a week | 602 |
19.1%
|
| 4 | 4. less than once a week | 44 |
1.4%
|
| Sysmiss | 1384 |