| Value | Category | Cases | |
|---|---|---|---|
| 1 | primary | 3354 | 
                                    
                                    44.3%
                                 | 
| 2 | lower secondary | 2345 | 
                                    
                                    31%
                                 | 
| 3 | upper secondary | 1321 | 
                                    
                                    17.5%
                                 | 
| 4 | higher | 543 | 
                                    
                                    7.2%
                                 | 
| 11 | .Z | 676 |