| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 | 6 | 
                                                                 
                                    
                                    0.6%
                                 
                                                             | 
                                                        
                    
| 8 | Not applicable | 973 | 
                                                                 
                                    
                                    97.5%
                                 
                                                             | 
                                                        
                    
| 9 | Unspecified | 19 | 
                                                                 
                                    
                                    1.9%
                                 
                                                             |