| Value | Category | Cases | |
|---|---|---|---|
| 1 | easily | 54439 | 
                                                                 
                                    
                                    83.9%
                                 
                                                             | 
                                                        
                    
| 2 | with difficulty | 3415 | 
                                                                 
                                    
                                    5.3%
                                 
                                                             | 
                                                        
                    
| 3 | not at all | 1473 | 
                                                                 
                                    
                                    2.3%
                                 
                                                             | 
                                                        
                    
| 9 | Not Stated | 5565 | 
                                                                 
                                    
                                    8.6%
                                 
                                                             |