| Value | Category | Cases | |
|---|---|---|---|
| 1 | GRADE 1 | 2616 | 
                                                                 
                                    
                                    9.8%
                                 
                                                             | 
                                                        
                    
| 2 | GRADE 2 | 3877 | 
                                                                 
                                    
                                    14.5%
                                 
                                                             | 
                                                        
                    
| 3 | GRADE 3 | 13022 | 
                                                                 
                                    
                                    48.6%
                                 
                                                             | 
                                                        
                    
| 4 | GRADE 4 | 960 | 
                                                                 
                                    
                                    3.6%
                                 
                                                             | 
                                                        
                    
| 5 | GRADE 5 | 1907 | 
                                                                 
                                    
                                    7.1%
                                 
                                                             | 
                                                        
                    
| 6 | GRADE 6 | 4430 | 
                                                                 
                                    
                                    16.5%
                                 
                                                             | 
                                                        
                    
| 99 | NO RESPONSE | 5 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 13509 |