| Value | Category | Cases | |
|---|---|---|---|
| 1 | O1 | 137 | 
                                                                 
                                    
                                    28.5%
                                 
                                                             | 
                                                        
                    
| 2 | O2 | 79 | 
                                                                 
                                    
                                    16.5%
                                 
                                                             | 
                                                        
                    
| Missing value | 264 | 
                                                                 
                                    
                                    55%
                                 
                                                             |