Is the estimated population of 2016 higher or lower compared to the estimated population of 2015?
return estimated  populations ;return #1 of 2016 ;return #1 of 2015 ;return is #2 higher than #3 ;return is #2 lower than #3 ;return which is true of #4 ,  #5
['select', 'filter', 'filter', 'boolean', 'boolean', 'comparison']