| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1.Per day | 58 |
6.4%
|
| 2 | 2.Per Month | 77 |
8.4%
|
| 3 | 3.Per semester | 5 |
0.5%
|
| 4 | 4.Per Academic year | 22 |
2.4%
|
| 5 | 5.Per one school period | 34 |
3.7%
|
| 6 | 6.Not Applicable | 714 |
78.3%
|
| 9 | 9.Missing | 2 |
0.2%
|
| Sysmiss | 5457 |