| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 933 | 
                                                                 
                                    
                                    8.1%
                                 
                                                             | 
                                                        
                    
| 1 | yes | 10372 | 
                                                                 
                                    
                                    89.9%
                                 
                                                             | 
                                                        
                    
| 8 | dk, not sure, depends | 221 | 
                                                                 
                                    
                                    1.9%
                                 
                                                             | 
                                                        
                    
| 9 | 10 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    |
| 11 | .Z | 7218 |