| Value | Category | Cases | |
|---|---|---|---|
| 1 | Much higher | 883 | 
                                                                 
                                    
                                    4.5%
                                 
                                                             | 
                                                        
                    
| 2 | Higher | 3102 | 
                                                                 
                                    
                                    15.8%
                                 
                                                             | 
                                                        
                    
| 3 | More or less the same | 6136 | 
                                                                 
                                    
                                    31.2%
                                 
                                                             | 
                                                        
                    
| 4 | Lower | 6562 | 
                                                                 
                                    
                                    33.4%
                                 
                                                             | 
                                                        
                    
| 5 | Much lower | 2960 | 
                                                                 
                                    
                                    15.1%
                                 
                                                             | 
                                                        
                    
| 9 | Unspecified | 6 | 
                                                                 
                                    
                                    0%
                                 
                                                             |