| Value | Category | 
                                    
                    
                        | 1 | 6 derniers mois | 
                                    
                    
                        | 2 | 12 derniers mois | 
                                    
                    
                        | 3 | 1-2 ans derniers | 
                                    
                    
                        | 4 | 3-5 ans derniers | 
                                    
                    
                        | 5 | 6-10 ans derniers | 
                                    
                    
                        | 6 | plus de 10 ans | 
                                    
                    
                        | 7 | jamais | 
                                    
                    
                        | 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.