| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 110 | 
                                                                 
                                    
                                    14.2%
                                 
                                                             | 
                                                        
                    
| -7 | Does not apply | 321 | 
                                                                 
                                    
                                    41.6%
                                 
                                                             | 
                                                        
                    
| 0 | No impact | 186 | 
                                                                 
                                    
                                    24.1%
                                 
                                                             | 
                                                        
                    
| 1 | Minor impact | 78 | 
                                                                 
                                    
                                    10.1%
                                 
                                                             | 
                                                        
                    
| 2 | Moderate impact | 54 | 
                                                                 
                                    
                                    7%
                                 
                                                             | 
                                                        
                    
| 3 | Major impact | 19 | 
                                                                 
                                    
                                    2.5%
                                 
                                                             | 
                                                        
                    
| 4 | Very major impact | 4 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             |