| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. never | 227 |
7.3%
|
| 2 | 2. once or twice a week | 198 |
6.3%
|
| 3 | 3. three to five times a week | 387 |
12.4%
|
| 4 | 4. every day | 939 |
30.1%
|
| 5 | 634 |
20.3%
|
|
| 6 | 737 |
23.6%
|
|
| Sysmiss | 1416 |