| Value | Category | Cases | |
|---|---|---|---|
| 1 | Grade 1-3 | 775 |
10.4%
|
| 2 | Grade 4-8 | 1850 |
24.7%
|
| 3 | Grade 8-10 | 2232 |
29.8%
|
| 4 | Professional school | 1691 |
22.6%
|
| 5 | Higher | 934 |
12.5%
|
| Sysmiss | 53 |