| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 1 | Very easy | 137 | 
                                                                 
                                    
                                    5.7%
                                 
                                                             | 
                                                        
                    
| 2 | Easy | 215 | 
                                                                 
                                    
                                    9%
                                 
                                                             | 
                                                        
                    
| 3 | Difficult | 116 | 
                                                                 
                                    
                                    4.8%
                                 
                                                             | 
                                                        
                    
| 4 | Very Difficult | 120 | 
                                                                 
                                    
                                    5%
                                 
                                                             | 
                                                        
                    
| 7 | Not Applicable | 1812 | 
                                                                 
                                    
                                    75.5%
                                 
                                                             | 
                                                        
                    
| 8 | Refused | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 9 | Don't Know | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             |