| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very weak | 773 | 
                                                                 
                                    
                                    3.9%
                                 
                                                             | 
                                                        
                    
| 2 | Weak | 1872 | 
                                                                 
                                    
                                    9.5%
                                 
                                                             | 
                                                        
                    
| 3 | Needs minor repairs | 4730 | 
                                                                 
                                    
                                    24.1%
                                 
                                                             | 
                                                        
                    
| 4 | Good | 9775 | 
                                                                 
                                    
                                    49.7%
                                 
                                                             | 
                                                        
                    
| 5 | Very good | 2495 | 
                                                                 
                                    
                                    12.7%
                                 
                                                             | 
                                                        
                    
| 9 | Unspecified | 4 | 
                                                                 
                                    
                                    0%
                                 
                                                             |