| Value | Category | 
                                    
                    
                        | 10 | correct response | 
                                    
                    
                        | 11 | correct response | 
                                    
                    
                        | 79 | incorrect response | 
                                    
                    
                        | 96 | not reached | 
                                    
                    
                        | 99 | omitted | 
                            
            Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.