| Value | Category | Cases | |
|---|---|---|---|
| 2012 | 1 | 
                                                                 
                                    
                                    2.2%
                                 
                                                             | 
                                                        
                    |
| 2013 | 17 | 
                                                                 
                                    
                                    37%
                                 
                                                             | 
                                                        
                    |
| 2014 | 28 | 
                                                                 
                                    
                                    60.9%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 3178 |