| Value | Category | Cases | |
|---|---|---|---|
| 0 | 7614 | 
                                                                 
                                    
                                    98.4%
                                 
                                                             | 
                                                        
                    |
| 2002 | 5 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    |
| 2003 | 4 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    |
| 2004 | 10 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    |
| 2005 | 20 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 2006 | 53 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 2007 | 10 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    |
| 4444 | 6 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    |
| 6666 | 16 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             | 
                                                        
                    |
| 9997 | 3 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 1054 |