| Value | Category | Cases | |
|---|---|---|---|
| 0 | 3718 | 
                                    
                                    68%
                                 | |
| 1992 | 1 | 
                                    
                                    0%
                                 | |
| 1996 | 3 | 
                                    
                                    0.1%
                                 | |
| 2000 | 2 | 
                                    
                                    0%
                                 | |
| 2001 | 1 | 
                                    
                                    0%
                                 | |
| 2004 | 3 | 
                                    
                                    0.1%
                                 | |
| 2005 | 4 | 
                                    
                                    0.1%
                                 | |
| 2006 | 3 | 
                                    
                                    0.1%
                                 | |
| 2007 | 1 | 
                                    
                                    0%
                                 | |
| 2008 | 6 | 
                                    
                                    0.1%
                                 | |
| 2009 | 6 | 
                                    
                                    0.1%
                                 | |
| 2010 | 5 | 
                                    
                                    0.1%
                                 | |
| 2011 | 4 | 
                                    
                                    0.1%
                                 | |
| 2012 | 2 | 
                                    
                                    0%
                                 | |
| 2013 | 6 | 
                                    
                                    0.1%
                                 | |
| 2014 | 18 | 
                                    
                                    0.3%
                                 | |
| 2015 | 21 | 
                                    
                                    0.4%
                                 | |
| 2016 | 36 | 
                                    
                                    0.7%
                                 | |
| 2017 | 99 | 
                                    
                                    1.8%
                                 | |
| 2018 | 16 | 
                                    
                                    0.3%
                                 | |
| 2019 | 3 | 
                                    
                                    0.1%
                                 | |
| 8888 | 8888 | 1509 | 
                                    
                                    27.6%
                                 | 
| Sysmiss | 103 |