| Value | Category | Cases | |
|---|---|---|---|
| 1 | 7th grade (III media) | 327 |
51.1%
|
| 2 | 8th grade (I superiore) | 180 |
28.1%
|
| 3 | 9th grade (II superiore) | 133 |
20.8%
|
| Sysmiss | 2 |