Which had the smallest percentage in the 2010 census:non-family or children under 18 living with them?
return the  2010 census ;return non-family of #1 ;return children under 18 living with them of #1 ;return percentage of #2 ;return percentage of #3 ;return which is the  lowest of #4 ,  #5
['select', 'project', 'project', 'project', 'project', 'comparison']