| Value | Category | Cases | |
|---|---|---|---|
| 0 | 36 | 
                                                                 
                                    
                                    11.6%
                                 
                                                             | 
                                                        
                    |
| 1 | 247 | 
                                                                 
                                    
                                    79.7%
                                 
                                                             | 
                                                        
                    |
| 2 | 19 | 
                                                                 
                                    
                                    6.1%
                                 
                                                             | 
                                                        
                    |
| 3 | 8 | 
                                                                 
                                    
                                    2.6%
                                 
                                                             |