which age group has a higher percentage, 45 to 64 or 18 to 24?
return age groups ;return percentage of #1 ;return #2 where #1 is 45 to 64 ;return #2 where #1 is 18 to 24 ;return which is highest of #3 ,  #4
['select', 'project', 'comparative', 'comparative', 'comparison']