| Value | Category | Cases | |
|---|---|---|---|
| 2005 | 960 | 
                                                                 
                                    
                                    8.6%
                                 
                                                             | 
                                                        
                    |
| 2006 | 2299 | 
                                                                 
                                    
                                    20.7%
                                 
                                                             | 
                                                        
                    |
| 2007 | 2291 | 
                                                                 
                                    
                                    20.6%
                                 
                                                             | 
                                                        
                    |
| 2008 | 2208 | 
                                                                 
                                    
                                    19.9%
                                 
                                                             | 
                                                        
                    |
| 2009 | 2155 | 
                                                                 
                                    
                                    19.4%
                                 
                                                             | 
                                                        
                    |
| 2010 | 1197 | 
                                                                 
                                    
                                    10.8%
                                 
                                                             | 
                                                        
                    |
| 9997 | Inconsistent | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 9999 | Missing | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 163 |