| Value | Category | Cases | |
|---|---|---|---|
| 2015 | 6 | 
                                                                 
                                    
                                    5.9%
                                 
                                                             | 
                                                        
                    |
| 2016 | 32 | 
                                                                 
                                    
                                    31.7%
                                 
                                                             | 
                                                        
                    |
| 2017 | 40 | 
                                                                 
                                    
                                    39.6%
                                 
                                                             | 
                                                        
                    |
| 2018 | 17 | 
                                                                 
                                    
                                    16.8%
                                 
                                                             | 
                                                        
                    |
| 2019 | 2 | 
                                                                 
                                    
                                    2%
                                 
                                                             | 
                                                        
                    |
| 9998 | 4 | 
                                                                 
                                    
                                    4%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 48936 |