| Value | Category | Cases | |
|---|---|---|---|
| 0 | 598 | 
                                                                 
                                    
                                    31.2%
                                 
                                                             | 
                                                        
                    |
| 2003 | 4 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             | 
                                                        
                    |
| 2005 | 3 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             | 
                                                        
                    |
| 2006 | 20 | 
                                                                 
                                    
                                    1%
                                 
                                                             | 
                                                        
                    |
| 2007 | 58 | 
                                                                 
                                    
                                    3%
                                 
                                                             | 
                                                        
                    |
| 2008 | 166 | 
                                                                 
                                    
                                    8.7%
                                 
                                                             | 
                                                        
                    |
| 2009 | 124 | 
                                                                 
                                    
                                    6.5%
                                 
                                                             | 
                                                        
                    |
| 2010 | 260 | 
                                                                 
                                    
                                    13.6%
                                 
                                                             | 
                                                        
                    |
| 2011 | 189 | 
                                                                 
                                    
                                    9.9%
                                 
                                                             | 
                                                        
                    |
| 2012 | 213 | 
                                                                 
                                    
                                    11.1%
                                 
                                                             | 
                                                        
                    |
| 2013 | 134 | 
                                                                 
                                    
                                    7%
                                 
                                                             | 
                                                        
                    |
| 2014 | 88 | 
                                                                 
                                    
                                    4.6%
                                 
                                                             | 
                                                        
                    |
| 2015 | 57 | 
                                                                 
                                    
                                    3%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 27565 |