| Value | Category | Cases | |
|---|---|---|---|
| 2010 | 1 | 
                                    
                                    0.8%
                                 | |
| 2012 | 59 | 
                                    
                                    44.7%
                                 | |
| 2013 | 72 | 
                                    
                                    54.5%
                                 | |
| Sysmiss | 62125 |