| Value | Category | 
                                    
                    
                        | 1 | Small (5-19) | 
                                    
                    
                        | 2 | Medium (20-99) | 
                                    
                    
                        | 3 | Large (100-249) | 
                                    
                    
                        | 4 | Top 1% (250+) | 
                                    
                    
                        | 5 | Large and Top 1% (100+) | 
                                    
                    
                        | 6 | Medium,Large and Top 1% (20+) | 
                            
            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.