| Value | Category | Cases | |
|---|---|---|---|
| 1 | excellent | 17 | 
                                    
                                    1%
                                 | 
| 2 | very good | 401 | 
                                    
                                    23.3%
                                 | 
| 3 | fair | 777 | 
                                    
                                    45.2%
                                 | 
| 4 | poor | 460 | 
                                    
                                    26.8%
                                 | 
| 9 | not applicable | 63 | 
                                    
                                    3.7%
                                 | 
| Sysmiss | 437 |