| Value | Category | Cases | |
|---|---|---|---|
| dk | 6 |
3%
|
|
| junior | 41 |
20.7%
|
|
| n/a | 1 |
0.5%
|
|
| none | 28 |
14.1%
|
|
| pre_school | 6 |
3%
|
|
| primary | 81 |
40.9%
|
|
| senior | 32 |
16.2%
|
|
| university | 3 |
1.5%
|