| Value | Category | Cases | |
|---|---|---|---|
| 2000 | 110 | 
                                                                 
                                    
                                    2.5%
                                 
                                                             | 
                                                        
                    |
| 2001 | 429 | 
                                                                 
                                    
                                    9.9%
                                 
                                                             | 
                                                        
                    |
| 2002 | 519 | 
                                                                 
                                    
                                    11.9%
                                 
                                                             | 
                                                        
                    |
| 2003 | 432 | 
                                                                 
                                    
                                    9.9%
                                 
                                                             | 
                                                        
                    |
| 2004 | 293 | 
                                                                 
                                    
                                    6.7%
                                 
                                                             | 
                                                        
                    |
| 2005 | 356 | 
                                                                 
                                    
                                    8.2%
                                 
                                                             | 
                                                        
                    |
| 2006 | 259 | 
                                                                 
                                    
                                    6%
                                 
                                                             | 
                                                        
                    |
| 2007 | 298 | 
                                                                 
                                    
                                    6.8%
                                 
                                                             | 
                                                        
                    |
| 2008 | 247 | 
                                                                 
                                    
                                    5.7%
                                 
                                                             | 
                                                        
                    |
| 2009 | 246 | 
                                                                 
                                    
                                    5.7%
                                 
                                                             | 
                                                        
                    |
| 2010 | 239 | 
                                                                 
                                    
                                    5.5%
                                 
                                                             | 
                                                        
                    |
| 2011 | 225 | 
                                                                 
                                    
                                    5.2%
                                 
                                                             | 
                                                        
                    |
| 2012 | 199 | 
                                                                 
                                    
                                    4.6%
                                 
                                                             | 
                                                        
                    |
| 2013 | 221 | 
                                                                 
                                    
                                    5.1%
                                 
                                                             | 
                                                        
                    |
| 2014 | 186 | 
                                                                 
                                    
                                    4.3%
                                 
                                                             | 
                                                        
                    |
| 2015 | 92 | 
                                                                 
                                    
                                    2.1%
                                 
                                                             | 
                                                        
                    |
| 9997 | inconsistent | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 9998 | don't know | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 2130 |