| Value | Category | 
                                    
                    
                        | 1 | strongly disagree | 
                                    
                    
                        | 2 | disagree | 
                                    
                    
                        | 3 | neither agree nor disagree | 
                                    
                    
                        | 4 | agree | 
                                    
                    
                        | 5 | strongly agree | 
                                    
                    
                        | 6 | don't know | 
                                    
                    
                        | 98 | refused | 
                                    
                    
                        | 99 | missing data | 
                            
            Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.