| Value | Category | Cases | |
|---|---|---|---|
| -1 | missing | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 1 | Very Difficult | 835 | 
                                                                 
                                    
                                    34.8%
                                 
                                                             | 
                                                        
                    
| 2 | Difficult | 859 | 
                                                                 
                                    
                                    35.8%
                                 
                                                             | 
                                                        
                    
| 3 | Easy | 512 | 
                                                                 
                                    
                                    21.3%
                                 
                                                             | 
                                                        
                    
| 4 | Very Easy | 176 | 
                                                                 
                                    
                                    7.3%
                                 
                                                             | 
                                                        
                    
| 8 | Refused to answer | 2 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    
| 9 | Don’t know | 16 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             |