| Value | Category | Cases | |
|---|---|---|---|
| 2014 | 273 | 
                                    
                                    27.6%
                                 | |
| 2015 | 645 | 
                                    
                                    65.3%
                                 | |
| 2016 | 70 | 
                                    
                                    7.1%
                                 | |
| Sysmiss | 1 |