| Value | Category | Cases | |
|---|---|---|---|
| 1 | Basic | 7730 | 
                                    
                                    16.5%
                                 | 
| 2 | Secondary | 6099 | 
                                    
                                    13.1%
                                 | 
| 3 | Higher | 5968 | 
                                    
                                    12.8%
                                 | 
| 5 | No information | 899 | 
                                    
                                    1.9%
                                 | 
| 9 | Missing/DK | 27 | 
                                    
                                    0.1%
                                 | 
| Sysmiss | 26006 | 
                                    
                                    55.7%
                                 |