| Value | 
                    Category | 
                                                                            
                                    
                    
                        | 1 | 
                        Never  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 2 | 
                        Few times a year  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 3 | 
                        2-3 times a month  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 4 | 
                        Once a week  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 5 | 
                        2-3 times a month  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 6 | 
                        Everyday  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 97 | 
                        No answer  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 98 | 
                          | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 9999998 | 
                        REFUSAL  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 9999999 | 
                        DONTKNOW  | 
                        
                            
                        
                        
                        
                        
                            
                    
                            
            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.