| Value | Category | Cases | |
|---|---|---|---|
| 1 | 7th grade | 1162 |
32.6%
|
| 2 | 8th grade (8th Preparatory , I Course) | 1276 |
35.8%
|
| 3 | 9th grade (I course, II course) | 1130 |
31.7%
|
| Sysmiss | 19 |