| Value | Category | Cases | |
|---|---|---|---|
| 1 | O2 | 211 | 
                                    
                                    42.2%
                                 | 
| 2 | O4 | 8 | 
                                    
                                    1.6%
                                 | 
| Missing value | 281 | 
                                    
                                    56.2%
                                 |