| Value | Category | Cases | |
|---|---|---|---|
| 2000 | 10 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 2001 | 37 | 
                                                                 
                                    
                                    1.2%
                                 
                                                             | 
                                                        
                    |
| 2002 | 101 | 
                                                                 
                                    
                                    3.2%
                                 
                                                             | 
                                                        
                    |
| 2003 | 197 | 
                                                                 
                                    
                                    6.3%
                                 
                                                             | 
                                                        
                    |
| 2004 | 255 | 
                                                                 
                                    
                                    8.2%
                                 
                                                             | 
                                                        
                    |
| 2005 | 265 | 
                                                                 
                                    
                                    8.5%
                                 
                                                             | 
                                                        
                    |
| 2006 | 270 | 
                                                                 
                                    
                                    8.6%
                                 
                                                             | 
                                                        
                    |
| 2007 | 249 | 
                                                                 
                                    
                                    8%
                                 
                                                             | 
                                                        
                    |
| 2008 | 268 | 
                                                                 
                                    
                                    8.6%
                                 
                                                             | 
                                                        
                    |
| 2009 | 291 | 
                                                                 
                                    
                                    9.3%
                                 
                                                             | 
                                                        
                    |
| 2010 | 222 | 
                                                                 
                                    
                                    7.1%
                                 
                                                             | 
                                                        
                    |
| 2011 | 247 | 
                                                                 
                                    
                                    7.9%
                                 
                                                             | 
                                                        
                    |
| 2012 | 209 | 
                                                                 
                                    
                                    6.7%
                                 
                                                             | 
                                                        
                    |
| 2013 | 211 | 
                                                                 
                                    
                                    6.7%
                                 
                                                             | 
                                                        
                    |
| 2014 | 188 | 
                                                                 
                                    
                                    6%
                                 
                                                             | 
                                                        
                    |
| 2015 | 106 | 
                                                                 
                                    
                                    3.4%
                                 
                                                             | 
                                                        
                    |
| 9997 | inconsistent | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 9998 | don't know | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 3355 |