| Value | Category | Cases | |
|---|---|---|---|
| 1 | High | 50 | 
                                                                 
                                    
                                    17.9%
                                 
                                                             | 
                                                        
                    
| 2 | Average | 93 | 
                                                                 
                                    
                                    33.2%
                                 
                                                             | 
                                                        
                    
| 3 | Low | 126 | 
                                                                 
                                    
                                    45%
                                 
                                                             | 
                                                        
                    
| 4 | None | 11 | 
                                                                 
                                    
                                    3.9%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 10 |