| Value | Category | 
                                    
                    
                        | 1 | rather satisfied | 
                                    
                    
                        | 2 | very satisfied | 
                                    
                    
                        | 3 | not satisfied at all | 
                                    
                    
                        | 4 | rather unsatisfied | 
                            
            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.