| Value | Category | Cases | |
|---|---|---|---|
| 1 | High | 12 | 
                                    
                                    4.7%
                                 | 
| 2 | Average | 12 | 
                                    
                                    4.7%
                                 | 
| 3 | Low | 66 | 
                                    
                                    25.9%
                                 | 
| 4 | None | 165 | 
                                    
                                    64.7%
                                 | 
| Sysmiss | 56 |