| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 321 | 
                                                                 
                                    
                                    2.9%
                                 
                                                             | 
                                                        
                    
| 2 | No | 9031 | 
                                                                 
                                    
                                    82.8%
                                 
                                                             | 
                                                        
                    
| 8 | Don't know | 1551 | 
                                                                 
                                    
                                    14.2%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 13 |