| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 0 | Not at all well | 156 | 
                                    
                                    13%
                                 | 
| 1 | Not very well | 340 | 
                                    
                                    28.3%
                                 | 
| 2 | Well | 453 | 
                                    
                                    37.8%
                                 | 
| 3 | Very well | 165 | 
                                    
                                    13.8%
                                 | 
| 9 | Don't know | 86 | 
                                    
                                    7.2%
                                 | 
| 98 | Refused | 0 | 
                                    
                                    0%
                                 |