| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 1016 | 
                                                                 
                                    
                                    19.6%
                                 
                                                             | 
                                                        
                    
| 2 | no | 1026 | 
                                                                 
                                    
                                    19.8%
                                 
                                                             | 
                                                        
                    
| 3 | not sure | 1332 | 
                                                                 
                                    
                                    25.7%
                                 
                                                             | 
                                                        
                    
| 4 | do not know | 1810 | 
                                                                 
                                    
                                    34.9%
                                 
                                                             |