| Value | Category | Cases | |
|---|---|---|---|
| 1 | Better | 867 | 
                                                                 
                                    
                                    47.1%
                                 
                                                             | 
                                                        
                    
| 2 | Same | 353 | 
                                                                 
                                    
                                    19.2%
                                 
                                                             | 
                                                        
                    
| 3 | Worse | 350 | 
                                                                 
                                    
                                    19%
                                 
                                                             | 
                                                        
                    
| 4 | Never used | 255 | 
                                                                 
                                    
                                    13.9%
                                 
                                                             | 
                                                        
                    
| 8 | DK | 14 | 
                                                                 
                                    
                                    0.8%
                                 
                                                             | 
                                                        
                    
| 9 | Missing | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 1672 |