| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 1869 | 
                                    
                                    79.2%
                                 | 
| 2 | SOME DIFFICULTY | 376 | 
                                    
                                    15.9%
                                 | 
| 3 | A LOT OF DIFFICULTY | 97 | 
                                    
                                    4.1%
                                 | 
| 4 | IT IS IMPOSSIBLE TO CARRY OUT THE ACTIVITY | 19 | 
                                    
                                    0.8%
                                 |