| Value | Category | Cases | |
|---|---|---|---|
| 1 | primary | 90 | 
                                                                 
                                    
                                    48.1%
                                 
                                                             | 
                                                        
                    
| 2 | lowest secondary | 49 | 
                                                                 
                                    
                                    26.2%
                                 
                                                             | 
                                                        
                    
| 3 | upper secondary | 40 | 
                                                                 
                                    
                                    21.4%
                                 
                                                             | 
                                                        
                    
| 4 | higher | 8 | 
                                                                 
                                    
                                    4.3%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 25 |