| Value | Category | Cases | |
|---|---|---|---|
| -99 | Inconsistent | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| -9 | Missing | 1 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 0 | incorrect | 925 | 
                                                                 
                                    
                                    31%
                                 
                                                             | 
                                                        
                    
| 1 | correct | 2061 | 
                                                                 
                                    
                                    69%
                                 
                                                             |