| Value | Category | 
                                    
                    
                        | 1 | diario | 
                                    
                    
                        | 2 | 2 a 4  veces | 
                                    
                    
                        | 3 | 1 vez a la sem. | 
                                    
                    
                        | 4 | 2 a 3 veces al m | 
                                    
                    
                        | 5 | 1 vez al mez | 
                                    
                    
                        | 6 | 1 vez al año | 
                                    
                    
                        | 7 | nunca | 
                                    
                    
                        | 8 | otro | 
                                    
                    
                        | 11 | .B | 
                                    
                    
                        | 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.