| Value | Category | Cases | |
|---|---|---|---|
| 1 | 7th grade | 551 |
27%
|
| 2 | 8th grade | 530 |
26%
|
| 3 | 9th grade | 234 |
11.5%
|
| 4 | 10th grade | 230 |
11.3%
|
| 5 | 11th grade | 373 |
18.3%
|
| 6 | 12th grade | 121 |
5.9%
|
| Sysmiss | 10 |