| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 0 | 
                                    
                                    0%
                                 | 
| 2 | O1 | 30 | 
                                    
                                    24.4%
                                 | 
| 3 | O2 | 0 | 
                                    
                                    0%
                                 | 
| 4 | O3 | 21 | 
                                    
                                    17.1%
                                 | 
| 5 | O4 | 0 | 
                                    
                                    0%
                                 | 
| Missing value | 72 | 
                                    
                                    58.5%
                                 |