| Value | Category | Cases | |
|---|---|---|---|
| 1 | 7th grade | 2 |
0.1%
|
| 2 | 8th grade | 4 |
0.2%
|
| 3 | 9th grade | 1 |
0.1%
|
| 4 | 10th grade | 578 |
29.3%
|
| 5 | 11th grade | 385 |
19.5%
|
| 6 | 12th grade | 618 |
31.3%
|
| 7 | 388 |
19.6%
|
|
| Sysmiss | 8 |