| Value | Category | 
                                    
                    
                        | 1 | CAME FOR WORK | 
                                    
                    
                        | 2 | CAME FOR STUDYING | 
                                    
                    
                        | 3 | JOINED DUE TO MARRIAGE OR COHABITATION | 
                                    
                    
                        | 4 | birth | 
                                    
                    
                        | 5 | other | 
                                    
                    
                        | 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.