| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 5288 | 
                                                                 
                                    
                                    64.2%
                                 
                                                             | 
                                                        
                    
| 1 | yes | 2814 | 
                                                                 
                                    
                                    34.2%
                                 
                                                             | 
                                                        
                    
| 8 | don't know | 127 | 
                                                                 
                                    
                                    1.5%
                                 
                                                             | 
                                                        
                    
| 9 | 3 | 
                                                                 
                                    
                                    0%
                                 
                                                             |