| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. per day | 2787 |
98.6%
|
| 2 | 2. per month | 36 |
1.3%
|
| 3 | 3. per semester | 0 |
0%
|
| 4 | 4. per academic year | 1 |
0%
|
| 5 | 5. per school period | 1 |
0%
|
| 9 | 9. Missing | 1 |
0%
|
| Sysmiss | 11405 |