| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1st grade of secondary | 924 |
24.4%
|
| 2 | 2nd grade of secondary | 790 |
20.8%
|
| 3 | 3rd grade of secondary | 857 |
22.6%
|
| 4 | 4th grade of secondary | 723 |
19.1%
|
| 5 | 5th grade of secondary | 500 |
13.2%
|
| Sysmiss | 24 |