| Value | Category | 
                                    
                    
                        | 0 | NR | 
                                    
                    
                        | 1 | self employed | 
                                    
                    
                        | 2 | Salaried/wage paid employee | 
                                    
                    
                        | 3 | casual wage labour | 
                                    
                    
                        | 4 |  | 
                                    
                    
                        | 7 |  | 
                                    
                    
                        | 8 | Invalid | 
                                    
                    
                        | 9 | Others | 
                                    
                    
                        | 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.