| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 136 | 
                                                                 
                                    
                                    3.1%
                                 
                                                             | 
                                                        
                    
| 2 | no | 4303 | 
                                                                 
                                    
                                    96.9%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 61 |