| Value | Category | 
                                    
                    
                        | 1 | money shortage | 
                                    
                    
                        | 2 | I do not know where to go for it | 
                                    
                    
                        | 3 | had no time | 
                                    
                    
                        | 4 | do not think it necessary | 
                                    
                    
                        | 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.