| Value | Category | 
                                    
                    
                        | 1 | Far too much | 
                                    
                    
                        | 2 | Too much | 
                                    
                    
                        | 3 | Just the right amount | 
                                    
                    
                        | 4 | Too little | 
                                    
                    
                        | 5 | Far too little | 
                                    
                    
                        | 77 | Don't know | 
                            
            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.