| Value | Category | Cases | |
|---|---|---|---|
| 2003 | 179 | 
                                                                 
                                    
                                    0.8%
                                 
                                                             | 
                                                        
                    |
| 2004 | 1310 | 
                                                                 
                                    
                                    5.8%
                                 
                                                             | 
                                                        
                    |
| 2005 | 1411 | 
                                                                 
                                    
                                    6.3%
                                 
                                                             | 
                                                        
                    |
| 2006 | 1699 | 
                                                                 
                                    
                                    7.6%
                                 
                                                             | 
                                                        
                    |
| 2007 | 1448 | 
                                                                 
                                    
                                    6.4%
                                 
                                                             | 
                                                        
                    |
| 2008 | 1508 | 
                                                                 
                                    
                                    6.7%
                                 
                                                             | 
                                                        
                    |
| 2009 | 1645 | 
                                                                 
                                    
                                    7.3%
                                 
                                                             | 
                                                        
                    |
| 2010 | 1411 | 
                                                                 
                                    
                                    6.3%
                                 
                                                             | 
                                                        
                    |
| 2011 | 1938 | 
                                                                 
                                    
                                    8.6%
                                 
                                                             | 
                                                        
                    |
| 2012 | 1597 | 
                                                                 
                                    
                                    7.1%
                                 
                                                             | 
                                                        
                    |
| 2013 | 1964 | 
                                                                 
                                    
                                    8.7%
                                 
                                                             | 
                                                        
                    |
| 2014 | 2122 | 
                                                                 
                                    
                                    9.5%
                                 
                                                             | 
                                                        
                    |
| 2015 | 2395 | 
                                                                 
                                    
                                    10.7%
                                 
                                                             | 
                                                        
                    |
| 2016 | 1823 | 
                                                                 
                                    
                                    8.1%
                                 
                                                             | 
                                                        
                    |
| 9999 | NO RESPONSE | 4 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 252 |