| Value | Category | Cases | |
|---|---|---|---|
| -95 | Missing | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 2005 | 1 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             | 
                                                        
                    |
| 2006 | 3 | 
                                                                 
                                    
                                    1.6%
                                 
                                                             | 
                                                        
                    |
| 2007 | 6 | 
                                                                 
                                    
                                    3.3%
                                 
                                                             | 
                                                        
                    |
| 2008 | 10 | 
                                                                 
                                    
                                    5.5%
                                 
                                                             | 
                                                        
                    |
| 2009 | 89 | 
                                                                 
                                    
                                    48.6%
                                 
                                                             | 
                                                        
                    |
| 2010 | 64 | 
                                                                 
                                    
                                    35%
                                 
                                                             | 
                                                        
                    |
| 2011 | 10 | 
                                                                 
                                    
                                    5.5%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 27 |