| Value | Category | 
                                    
                    
                        | 0 | no usa | 
                                    
                    
                        | 1 | pastillas | 
                                    
                    
                        | 2 | diu | 
                                    
                    
                        | 3 | inyección | 
                                    
                    
                        | 4 | norplant | 
                                    
                    
                        | 5 | vaginales | 
                                    
                    
                        | 6 | condón | 
                                    
                    
                        | 7 | est. femenina | 
                                    
                    
                        | 8 | vasectomia | 
                                    
                    
                        | 9 | ritmo | 
                                    
                    
                        | 10 | retiro | 
                                    
                    
                        | 11 | mela | 
                                    
                    
                        | 96 | otro | 
                            
            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.