| Value | Category | 
                                    
                    
                        | 1 | I do not teach these topics | 
                                    
                    
                        | 2 | not well prepared | 
                                    
                    
                        | 3 | somewhat prepared | 
                                    
                    
                        | 4 | very well prepared | 
                                    
                    
                        | 8 | not admin. | 
                                    
                    
                        | 9 | omitted | 
                                    
                    
                        | 11 | .A | 
                            
            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.