| Value | Category | Cases | |
|---|---|---|---|
| 1 | PRIMARIA | 21 | 
                                    
                                    0.3%
                                 | 
| 2 | SECUNDARIA | 906 | 
                                    
                                    11%
                                 | 
| 4 | SUPERIOR | 291 | 
                                    
                                    3.5%
                                 | 
| Sysmiss | 6999 | 
                                    
                                    85.2%
                                 |