| Value | Category | Cases | |
|---|---|---|---|
| 2000 | 7 | 
                                                                 
                                    
                                    0.4%
                                 
                                                             | 
                                                        
                    |
| 2001 | 15 | 
                                                                 
                                    
                                    0.8%
                                 
                                                             | 
                                                        
                    |
| 2002 | 30 | 
                                                                 
                                    
                                    1.6%
                                 
                                                             | 
                                                        
                    |
| 2003 | 36 | 
                                                                 
                                    
                                    1.9%
                                 
                                                             | 
                                                        
                    |
| 2004 | 56 | 
                                                                 
                                    
                                    2.9%
                                 
                                                             | 
                                                        
                    |
| 2005 | 95 | 
                                                                 
                                    
                                    5%
                                 
                                                             | 
                                                        
                    |
| 2006 | 123 | 
                                                                 
                                    
                                    6.5%
                                 
                                                             | 
                                                        
                    |
| 2007 | 170 | 
                                                                 
                                    
                                    8.9%
                                 
                                                             | 
                                                        
                    |
| 2008 | 168 | 
                                                                 
                                    
                                    8.8%
                                 
                                                             | 
                                                        
                    |
| 2009 | 185 | 
                                                                 
                                    
                                    9.7%
                                 
                                                             | 
                                                        
                    |
| 2010 | 211 | 
                                                                 
                                    
                                    11.1%
                                 
                                                             | 
                                                        
                    |
| 2011 | 207 | 
                                                                 
                                    
                                    10.9%
                                 
                                                             | 
                                                        
                    |
| 2012 | 171 | 
                                                                 
                                    
                                    9%
                                 
                                                             | 
                                                        
                    |
| 2013 | 160 | 
                                                                 
                                    
                                    8.4%
                                 
                                                             | 
                                                        
                    |
| 2014 | 180 | 
                                                                 
                                    
                                    9.4%
                                 
                                                             | 
                                                        
                    |
| 2015 | 91 | 
                                                                 
                                    
                                    4.8%
                                 
                                                             | 
                                                        
                    |
| 9997 | Inconsistent | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 9998 | Don't know | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 4576 |