| Value | Category | Cases | |
|---|---|---|---|
| 1 | Comprehensive school or elementary school | 146 |
2.9%
|
| 2 | High school | 469 |
9.4%
|
| 3 | Vocational institute | 686 |
13.7%
|
| 4 | Vocational studies in addition to high school or vocational institute | 487 |
9.7%
|
| 5 | University or college | 923 |
18.4%
|
| 6 | I don't know | 2292 |
45.8%
|
| Sysmiss | 28 |