| Value | Category | Cases | |
|---|---|---|---|
| 1994 | 2 | 
                                
                                0.6%
                             | |
| 2002 | 3 | 
                                
                                0.9%
                             | |
| 2005 | 3 | 
                                
                                0.9%
                             | |
| 2006 | 4 | 
                                
                                1.2%
                             | |
| 2007 | 2 | 
                                
                                0.6%
                             | |
| 2008 | 3 | 
                                
                                0.9%
                             | |
| 2009 | 100 | 
                                
                                30.2%
                             | |
| 2010 | 172 | 
                                
                                52%
                             | |
| 9995 | Missing | 0 | 
                                
                                0%
                             | 
| 9996 | Other | 0 | 
                                
                                0%
                             | 
| 9997 | Refused | 0 | 
                                
                                0%
                             | 
| 9998 | Dont Know | 0 | 
                                
                                0%
                             | 
| 9999 | Not Applicable | 42 | 
                                
                                12.7%
                             |