| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very well | 2150 | 
                                    
                                    4.1%
                                 | 
| 2 | Well | 5498 | 
                                    
                                    10.5%
                                 | 
| 3 | Less | 4523 | 
                                    
                                    8.6%
                                 | 
| 4 | Don't Know | 40377 | 
                                    
                                    76.8%
                                 | 
| Sysmiss | 29230 |