| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2 | 
                                                                 
                                    
                                    0.4%
                                 
                                                             | 
                                                        
                    |
| 1 | 43 | 
                                                                 
                                    
                                    9%
                                 
                                                             | 
                                                        
                    |
| 2 | 34 | 
                                                                 
                                    
                                    7.1%
                                 
                                                             | 
                                                        
                    |
| 3 | 2 | 
                                                                 
                                    
                                    0.4%
                                 
                                                             | 
                                                        
                    |
| Missing value | 399 | 
                                                                 
                                    
                                    83.1%
                                 
                                                             |