| Value | Category | 
                                    
                    
                        | 1 | ALMOST NONE | 
                                    
                    
                        | 2 | ABOUT 25% | 
                                    
                    
                        | 3 | ABOUT HALF | 
                                    
                    
                        | 4 | ABOUT 75% | 
                                    
                    
                        | 5 | ALMOST ALL | 
                                    
                    
                        | 6 | OTHER (SPECIFY) | 
                                    
                    
                        | Sysmiss |  | 
                            
            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.