| Value | Category | Cases | |
|---|---|---|---|
| 1 | Primary or none | 8769 |
25%
|
| 2 | Secondary | 4232 |
12.1%
|
| 3 | Higher | 783 |
2.2%
|
| 7 | No information | 191 |
0.5%
|
| 9 | DK / Missing | 14 |
0%
|
| Sysmiss | 21121 |
60.2%
|