| Value | Category | Cases | |
|---|---|---|---|
| 1 | Mild | 4 | 
                                                                 
                                    
                                    11.4%
                                 
                                                             | 
                                                        
                    
| 2 | Moderate | 12 | 
                                                                 
                                    
                                    34.3%
                                 
                                                             | 
                                                        
                    
| 3 | Severe | 19 | 
                                                                 
                                    
                                    54.3%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 17609 |