| Value | Category | 
                                    
                    
                        | 1 | 1. 1 | 
                                    
                    
                        | 2 | 2. 2 | 
                                    
                    
                        | 3 | 3. 3 | 
                                    
                    
                        | 4 | 4. 4 | 
                                    
                    
                        | 5 | 5. 5 | 
                                    
                    
                        | 6 | 6. 6 | 
                                    
                    
                        | 7 | 7. 7 | 
                                    
                    
                        | 8 | 8. 8 | 
                                    
                    
                        | 9 | 9. 9 | 
                                    
                    
                        | 10 | 10. 10 | 
                                    
                    
                        | 11 | 11. 11 | 
                                    
                    
                        | 12 | 12. 12 | 
                            
            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.