| Value | Category | 
                                    
                    
                        | 1 | sen off/man/prof | 
                                    
                    
                        | 3 | tech and assoc | 
                                    
                    
                        | 4 | clerks/serv workers | 
                                    
                    
                        | 6 | craft and rel | 
                                    
                    
                        | 7 | plant & mach op | 
                                    
                    
                        | 8 | labourers and rel | 
                            
            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.