| Value | Category | 
                                    
                    
                        | 1 | Parent or guardian | 
                                    
                    
                        | 2 | Spouse/Partner | 
                                    
                    
                        | 3 | Other relatives | 
                                    
                    
                        | 4 | Friend | 
                                    
                    
                        | 5 | Personal saving | 
                                    
                    
                        | 6 | Other | 
                                    
                    
                        | 7 | Not stated | 
                                    
                    
                        | 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.