| Value | Category | Cases | |
|---|---|---|---|
| 2014 | 38 | 
                                                                 
                                    
                                    2.5%
                                 
                                                             | 
                                                        
                    |
| 2015 | 1486 | 
                                                                 
                                    
                                    96.9%
                                 
                                                             | 
                                                        
                    |
| 2016 | 9 | 
                                                                 
                                    
                                    0.6%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 1299 |