| Value | Category | Cases | |
|---|---|---|---|
| 0 | 260 | 
                                                                 
                                    
                                    14.1%
                                 
                                                             | 
                                                        
                    |
| 33 | 586 | 
                                                                 
                                    
                                    31.7%
                                 
                                                             | 
                                                        
                    |
| 66 | 481 | 
                                                                 
                                    
                                    26%
                                 
                                                             | 
                                                        
                    |
| 100 | 521 | 
                                                                 
                                    
                                    28.2%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 1948 |