| Value | Category | Cases | |
|---|---|---|---|
| 99 | ND | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 2008 | 2 | 
                                                                 
                                    
                                    7.1%
                                 
                                                             | 
                                                        
                    |
| 2009 | 1 | 
                                                                 
                                    
                                    3.6%
                                 
                                                             | 
                                                        
                    |
| 2010 | 3 | 
                                                                 
                                    
                                    10.7%
                                 
                                                             | 
                                                        
                    |
| 2012 | 7 | 
                                                                 
                                    
                                    25%
                                 
                                                             | 
                                                        
                    |
| 2013 | 15 | 
                                                                 
                                    
                                    53.6%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 1472 |