| Value | Category | Cases | |
|---|---|---|---|
| 0 | KG | 2 | 
                                    
                                    0%
                                 | 
| 1 | BASIC | 2625 | 
                                    
                                    22.9%
                                 | 
| 2 | SECONDARY | 3682 | 
                                    
                                    32.1%
                                 | 
| 3 | HIGHER | 4760 | 
                                    
                                    41.5%
                                 | 
| Sysmiss | 395 | 
                                    
                                    3.4%
                                 |