| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. twice a day | 101 |
3.2%
|
| 1 | 1. every day | 375 |
11.9%
|
| 2 | 2. 2-4 times per week | 1433 |
45.5%
|
| 3 | 3. once a week | 1089 |
34.6%
|
| 4 | 4. less than once a week | 149 |
4.7%
|
| Sysmiss | 1391 |