| Value | Category | Cases | |
|---|---|---|---|
| 0 | 19 | 
                                                                 
                                    
                                    54.3%
                                 
                                                             | 
                                                        
                    |
| 1 | 13 | 
                                                                 
                                    
                                    37.1%
                                 
                                                             | 
                                                        
                    |
| 2 | 3 | 
                                                                 
                                    
                                    8.6%
                                 
                                                             | 
                                                        
                    |
| Missing value | 73 |