| Value | Category | Cases | |
|---|---|---|---|
| 2017 | 21 | 
                                                                 
                                    
                                    24.7%
                                 
                                                             | 
                                                        
                    |
| 2018 | 58 | 
                                                                 
                                    
                                    68.2%
                                 
                                                             | 
                                                        
                    |
| 2019 | 6 | 
                                                                 
                                    
                                    7.1%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 668 |