| Value | Category | Cases | |
|---|---|---|---|
| -7 | Not applicable | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 0 | 855 | 
                                                                 
                                    
                                    53.2%
                                 
                                                             | 
                                                        
                    |
| 1 | 625 | 
                                                                 
                                    
                                    38.9%
                                 
                                                             | 
                                                        
                    |
| 2 | 106 | 
                                                                 
                                    
                                    6.6%
                                 
                                                             | 
                                                        
                    |
| 3 | 12 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 4 | 6 | 
                                                                 
                                    
                                    0.4%
                                 
                                                             | 
                                                        
                    |
| 5 | 3 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             |