| Value | Category | Cases | |
|---|---|---|---|
| 1 | medium | 88 | 
                                                                 
                                    
                                    48.6%
                                 
                                                             | 
                                                        
                    
| 2 | no pressure | 10 | 
                                                                 
                                    
                                    5.5%
                                 
                                                             | 
                                                        
                    
| 3 | low | 59 | 
                                                                 
                                    
                                    32.6%
                                 
                                                             | 
                                                        
                    
| 4 | high | 24 | 
                                                                 
                                    
                                    13.3%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 146 |