| Value | 
                    Category | 
                                                                            
                                    
                    
                        | 9996 | 
                        height out of plausible limits | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 9997 | 
                        age in days out of plausible limits | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 9998 | 
                        flagged cases | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | Sysmiss | 
                         | 
                        
                            
                        
                        
                        
                        
                            
                    
                            
            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.