| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not mentioned | 948 | 
                                                                 
                                    
                                    76.5%
                                 
                                                             | 
                                                        
                    
| 1 | Mentioned | 27 | 
                                                                 
                                    
                                    2.2%
                                 
                                                             | 
                                                        
                    
| 8 | 38 | 
                                                                 
                                    
                                    3.1%
                                 
                                                             | 
                                                        
                    |
| 9 | 16 | 
                                                                 
                                    
                                    1.3%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 210 | 
                                                                 
                                    
                                    16.9%
                                 
                                                             |