Which age group made up less of the population, between 20 and 24 years or between 30 and 34 years?
return age groups ;return population of #1 ;return #2 where #1 is between 20 and  24 years  ;return #2 where #1 is between 30 and  34 years  ;return which is lowest of #3 ,  #4
['select', 'project', 'comparative', 'comparative', 'comparison']