| Value | Category | Cases | |
|---|---|---|---|
| 1 | 6th grade | 208 |
14.2%
|
| 2 | 7th grade | 218 |
14.9%
|
| 3 | 8th grade | 227 |
15.5%
|
| 4 | 9th grade | 247 |
16.8%
|
| 5 | 10th grade | 203 |
13.8%
|
| 6 | 11th grade | 195 |
13.3%
|
| 7 | 12th grade | 168 |
11.5%
|
| Sysmiss | 13 |