How many more days did the population grow until 1970 than the 1860?
return the  population ;return days that #1 grow ;return #2 until 1970 ;return #2 until 1860 ;return number of  #3 ;return number of  #4 ;return difference of #5 and  #6
['select', 'project', 'filter', 'filter', 'aggregate', 'aggregate', 'arithmetic']