| Value | Category | Cases | |
|---|---|---|---|
| 1 | 2011 | 6 | 
                                    
                                    5.3%
                                 | 
| 2 | 2012 | 1 | 
                                    
                                    0.9%
                                 | 
| 3 | 2013 | 1 | 
                                    
                                    0.9%
                                 | 
| 4 | 2014 | 106 | 
                                    
                                    93%
                                 | 
| Sysmiss | 1386 |