| Value | Category | Cases | |
|---|---|---|---|
| 1 | NINGUNA DIFICULTAD | 3433 | 
                                                                 
                                    
                                    90.1%
                                 
                                                             | 
                                                        
                    
| 2 | CIERTA DIFICULTAD | 20 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             | 
                                                        
                    
| 3 | MUCHA DIFICULTAD | 3 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 353 | 
                                                                 
                                    
                                    9.3%
                                 
                                                             |