| Value | Category | Cases | |
|---|---|---|---|
| 0 | 129 | 
                                                                 
                                    
                                    96.3%
                                 
                                                             | 
                                                        
                    |
| 1 | 4 | 
                                                                 
                                    
                                    3%
                                 
                                                             | 
                                                        
                    |
| 2 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 1817 |