| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. 1-2 times a year | 144 |
7.9%
|
| 2 | 2. 1-2 times per term | 116 |
6.3%
|
| 3 | 3. 1-2 times a month | 211 |
11.5%
|
| 4 | 4. once a week | 591 |
32.3%
|
| 5 | 5. 1-3 times a week | 434 |
23.8%
|
| 6 | 6. every day | 331 |
18.1%
|
| Sysmiss | 2711 |