| Value | Category | Cases | |
|---|---|---|---|
| 1 | Increased a lot | 1260 | 
                                                                 
                                    
                                    6.5%
                                 
                                                             | 
                                                        
                    
| 2 | Increased | 3263 | 
                                                                 
                                    
                                    16.7%
                                 
                                                             | 
                                                        
                    
| 3 | Not changed | 2838 | 
                                                                 
                                    
                                    14.6%
                                 
                                                             | 
                                                        
                    
| 4 | Decreased | 6784 | 
                                                                 
                                    
                                    34.8%
                                 
                                                             | 
                                                        
                    
| 5 | Decreased a lot | 3150 | 
                                                                 
                                    
                                    16.2%
                                 
                                                             | 
                                                        
                    
| 6 | Don't know | 2194 | 
                                                                 
                                    
                                    11.3%
                                 
                                                             |