How many people, households, and families are in the county according to the census?
return the  census of the county ;return people of #1 ;return households of #1 ;return families of #1 ;return number of  #2 ;return number of  #3 ;return number of  #4 ;return sum of #5 ,  #6 ,   #7
['select', 'project', 'project', 'project', 'aggregate', 'aggregate', 'aggregate', 'arithmetic']