| Value | Category | Cases | |
|---|---|---|---|
| -7 | Not applicable | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 0 | No | 434 | 
                                                                 
                                    
                                    94.8%
                                 
                                                             | 
                                                        
                    
| 1 | Yes | 24 | 
                                                                 
                                    
                                    5.2%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 1967 |