| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 1 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    
| 1 | Very good | 469 | 
                                                                 
                                    
                                    46.9%
                                 
                                                             | 
                                                        
                    
| 2 | Good | 354 | 
                                                                 
                                    
                                    35.4%
                                 
                                                             | 
                                                        
                    
| 3 | Fair | 133 | 
                                                                 
                                    
                                    13.3%
                                 
                                                             | 
                                                        
                    
| 4 | Poor | 36 | 
                                                                 
                                    
                                    3.6%
                                 
                                                             | 
                                                        
                    
| 5 | Very poor | 7 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             |