| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 63 | 
                                                                 
                                    
                                    6.4%
                                 
                                                             | 
                                                        
                    
| 2 | Mild | 350 | 
                                                                 
                                    
                                    35.6%
                                 
                                                             | 
                                                        
                    
| 3 | Moderate | 404 | 
                                                                 
                                    
                                    41.1%
                                 
                                                             | 
                                                        
                    
| 4 | Severe | 128 | 
                                                                 
                                    
                                    13%
                                 
                                                             | 
                                                        
                    
| 5 | Extreme | 39 | 
                                                                 
                                    
                                    4%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 2954 |