| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 781 | 
                                    
                                    9.6%
                                 | 
| 1 | yes | 7189 | 
                                    
                                    88.6%
                                 | 
| 8 | don't know/not sure/depends | 140 | 
                                    
                                    1.7%
                                 | 
| 9 | 3 | 
                                    
                                    0%
                                 | |
| 11 | .Z | 126 |