| Value | Category | Cases | |
|---|---|---|---|
| 1 | Correct answer | 2340 | 
                                                                 
                                    
                                    53.3%
                                 
                                                             | 
                                                        
                    
| 2 | Wrong answer | 1424 | 
                                                                 
                                    
                                    32.4%
                                 
                                                             | 
                                                        
                    
| 8 | Don't know | 585 | 
                                                                 
                                    
                                    13.3%
                                 
                                                             | 
                                                        
                    
| 9 | No answer | 42 | 
                                                                 
                                    
                                    1%
                                 
                                                             |