| Value | Category | Cases | |
|---|---|---|---|
| 1 | not mentioned | 558 | 
                                                                 
                                    
                                    92.1%
                                 
                                                             | 
                                                        
                    
| 2 | mentioned | 48 | 
                                                                 
                                    
                                    7.9%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 100 |