| Value | Category | Cases | |
|---|---|---|---|
| 1 | 7th grade | 1679 |
29%
|
| 2 | 8th grade | 1733 |
30%
|
| 3 | 1st year | 1273 |
22%
|
| 4 | 2nd year | 1101 |
19%
|
| Sysmiss | 38 |