| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 356 | 
                                                                 
                                    
                                    18.2%
                                 
                                                             | 
                                                        
                    
| 2 | Mild | 443 | 
                                                                 
                                    
                                    22.6%
                                 
                                                             | 
                                                        
                    
| 3 | Moderate | 632 | 
                                                                 
                                    
                                    32.3%
                                 
                                                             | 
                                                        
                    
| 4 | Severe | 411 | 
                                                                 
                                    
                                    21%
                                 
                                                             | 
                                                        
                    
| 5 | Extreme | 114 | 
                                                                 
                                    
                                    5.8%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 1982 |