| Value | Category | Cases | |
|---|---|---|---|
| 1 | 7th grade | 372 |
20%
|
| 2 | 8th grade | 242 |
13%
|
| 3 | 9th grade | 409 |
22%
|
| 4 | 10th grade | 169 |
9.1%
|
| 5 | 11th grade | 294 |
15.8%
|
| 6 | 12th grade | 371 |
20%
|
| Sysmiss | 13 |