| Value | Category | Cases | |
|---|---|---|---|
| 1 | O1 | 2 | 
                                                                 
                                    
                                    0.4%
                                 
                                                             | 
                                                        
                    
| 2 | O2 | 262 | 
                                                                 
                                    
                                    50.5%
                                 
                                                             | 
                                                        
                    
| Missing value | 255 | 
                                                                 
                                    
                                    49.1%
                                 
                                                             |