| Value | Category | Cases | |
|---|---|---|---|
| 1 | Improved a lot | 1579 | 
                                    
                                    39.3%
                                 | 
| 2 | Improved a little | 1690 | 
                                    
                                    42.1%
                                 | 
| 3 | Stayed the same | 672 | 
                                    
                                    16.7%
                                 | 
| 4 | Worsened | 43 | 
                                    
                                    1.1%
                                 | 
| 5 | Significantly worsened | 4 | 
                                    
                                    0.1%
                                 | 
| 998 | Don't know | 30 | 
                                    
                                    0.7%
                                 | 
| 999 | Refuse to answer | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 9 |