| Value | Category | Cases | |
|---|---|---|---|
| 0 | pre-primary | 3 | 
                                    
                                    3.7%
                                 | 
| 1 | primary | 60 | 
                                    
                                    74.1%
                                 | 
| 2 | secondary lower | 13 | 
                                    
                                    16%
                                 | 
| 3 | secondary upper | 5 | 
                                    
                                    6.2%
                                 | 
| 4 | higher | 0 | 
                                    
                                    0%
                                 | 
| 8 | dk | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 15270 |