| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 10 | 
                                                                 
                                    
                                    6.4%
                                 
                                                             | 
                                                        
                    
| 2 | no | 143 | 
                                                                 
                                    
                                    91.7%
                                 
                                                             | 
                                                        
                    
| 3 | uncertain | 3 | 
                                                                 
                                    
                                    1.9%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 2457 |