| Value | Category | Cases | |
|---|---|---|---|
| 0 | pre-primary | 0 | 
                                    
                                    0%
                                 | 
| 1 | primary | 48 | 
                                    
                                    84.2%
                                 | 
| 2 | secondary lower | 2 | 
                                    
                                    3.5%
                                 | 
| 3 | secondary upper | 2 | 
                                    
                                    3.5%
                                 | 
| 4 | higher | 5 | 
                                    
                                    8.8%
                                 | 
| 8 | dk | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 15294 |