| Value | Category | Cases | |
|---|---|---|---|
| 0 | preschool | 3 | 
                                    
                                    9.7%
                                 | 
| 1 | primary | 22 | 
                                    
                                    71%
                                 | 
| 2 | secondary | 6 | 
                                    
                                    19.4%
                                 | 
| 3 | higher | 0 | 
                                    
                                    0%
                                 | 
| 8 | dk | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 6361 |