| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 1 | Very easy | 78 | 
                                                                 
                                    
                                    6.5%
                                 
                                                             | 
                                                        
                    
| 2 | Easy | 247 | 
                                                                 
                                    
                                    20.6%
                                 
                                                             | 
                                                        
                    
| 3 | Difficult | 74 | 
                                                                 
                                    
                                    6.2%
                                 
                                                             | 
                                                        
                    
| 4 | Very Difficult | 28 | 
                                                                 
                                    
                                    2.3%
                                 
                                                             | 
                                                        
                    
| 7 | Not Applicable | 768 | 
                                                                 
                                    
                                    64%
                                 
                                                             | 
                                                        
                    
| 8 | Refused | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 9 | Don't Know | 5 | 
                                                                 
                                    
                                    0.4%
                                 
                                                             |