| Value | Category | Cases | |
|---|---|---|---|
| 1 | 70 | 
                                                                 
                                    
                                    25%
                                 
                                                             | 
                                                        
                    |
| 2 | 210 | 
                                                                 
                                    
                                    75%
                                 
                                                             | 
                                                        
                    |
| 99 | ND | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 1220 |