| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. 1-2 times a year | 81 |
3.5%
|
| 2 | 2. 1-2 times per term | 73 |
3.1%
|
| 3 | 3. 1-2 times a month | 250 |
10.7%
|
| 4 | 4. once a week | 829 |
35.5%
|
| 5 | 5. 1-3 times a week | 663 |
28.4%
|
| 6 | 6. every day | 442 |
18.9%
|
| Sysmiss | 2200 |