| Value | Category | Cases | |
|---|---|---|---|
| 1 | Measured | 14773 | 
                                                                 
                                    
                                    99.1%
                                 
                                                             | 
                                                        
                    
| 2 | Not present | 57 | 
                                                                 
                                    
                                    0.4%
                                 
                                                             | 
                                                        
                    
| 3 | Refused | 34 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             | 
                                                        
                    
| 6 | Other | 41 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    
| 9 | 502 |