| Value | Category | Cases | |
|---|---|---|---|
| 1 | 6th grade or younger | 9 |
0.2%
|
| 2 | 7th grade | 975 |
23.7%
|
| 3 | 8th grade | 1242 |
30.2%
|
| 4 | 9th grade | 932 |
22.7%
|
| 5 | 10th grade or older | 949 |
23.1%
|
| Sysmiss | 22 |