| Value | Category | Cases | |
|---|---|---|---|
| 1 | 9th grade of Middle School | 1782 |
33%
|
| 2 | 10th grade of Middle School | 2014 |
37.3%
|
| 3 | 1st year of High School | 1600 |
29.7%
|
| Sysmiss | 66 |