| Value | Category | Cases | |
|---|---|---|---|
| 0 | 94 | 
                                                                 
                                    
                                    26.7%
                                 
                                                             | 
                                                        
                    |
| 1 | None | 87 | 
                                                                 
                                    
                                    24.7%
                                 
                                                             | 
                                                        
                    
| 2 | Lower technical degree | 20 | 
                                                                 
                                    
                                    5.7%
                                 
                                                             | 
                                                        
                    
| 3 | Upper technical degree | 13 | 
                                                                 
                                    
                                    3.7%
                                 
                                                             | 
                                                        
                    
| 4 | Technical college | 79 | 
                                                                 
                                    
                                    22.4%
                                 
                                                             | 
                                                        
                    
| 5 | College/ university or higher | 59 | 
                                                                 
                                    
                                    16.8%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 2581 |