| Value | Category | Cases | |
|---|---|---|---|
| 1 | Much worse | 4 | 
                                    
                                    0.3%
                                 | 
| 2 | Worse | 23 | 
                                    
                                    1.9%
                                 | 
| 3 | Same | 50 | 
                                    
                                    4.2%
                                 | 
| 4 | Better | 421 | 
                                    
                                    35.1%
                                 | 
| 5 | Much better | 300 | 
                                    
                                    25%
                                 | 
| 6 | Don't know | 337 | 
                                    
                                    28.1%
                                 | 
| 98 | Refused | 6 | 
                                    
                                    0.5%
                                 | 
| 99 | Missing data | 59 | 
                                    
                                    4.9%
                                 |