| Value | Category | Cases | |
|---|---|---|---|
| 99 | ND | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 1995 | 1 | 
                                                                 
                                    
                                    16.7%
                                 
                                                             | 
                                                        
                    |
| 1998 | 1 | 
                                                                 
                                    
                                    16.7%
                                 
                                                             | 
                                                        
                    |
| 2007 | 1 | 
                                                                 
                                    
                                    16.7%
                                 
                                                             | 
                                                        
                    |
| 2011 | 1 | 
                                                                 
                                    
                                    16.7%
                                 
                                                             | 
                                                        
                    |
| 2012 | 1 | 
                                                                 
                                    
                                    16.7%
                                 
                                                             | 
                                                        
                    |
| 2013 | 1 | 
                                                                 
                                    
                                    16.7%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 1494 |