| Value | Category | 
                                    
                    
                        | 1 | NEVER | 
                                    
                    
                        | 2 | RARELY (1 TO 2 TIMES) | 
                                    
                    
                        | 3 | SOMETIMES (3 TO 6 TIMES) | 
                                    
                    
                        | 4 | OFTEN (A FEW TIMES EVERY MONTH) | 
                                    
                    
                        | 5 | MOSTLY (THIS HAPPENS A LOT) | 
                                    
                    
                        | 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.