| Value | Category | Cases | |
|---|---|---|---|
| 2004 | 1 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    |
| 2008 | 5 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             | 
                                                        
                    |
| 2010 | 7 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 2011 | 2 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    |
| 2012 | 8 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 2013 | 7 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 2014 | 8 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 2015 | 436 | 
                                                                 
                                    
                                    15.9%
                                 
                                                             | 
                                                        
                    |
| 2016 | 944 | 
                                                                 
                                    
                                    34.5%
                                 
                                                             | 
                                                        
                    |
| 2017 | 839 | 
                                                                 
                                    
                                    30.6%
                                 
                                                             | 
                                                        
                    |
| 2018 | 458 | 
                                                                 
                                    
                                    16.7%
                                 
                                                             | 
                                                        
                    |
| 9999 | 9999. MISSING | 24 | 
                                                                 
                                    
                                    0.9%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 27607 |