How many more females per 100 age 18 and over were there than males?
return females ;return ages of #1 ;return males ;return ages of #3 ;return #1 where #2 is at least 18 ;return #3 where #4 is at least 18 ;return number of  #5 ;return number of  #6 ;return per 100 of #7 ;return per 100 of #8 ;return difference of #9 and  #10
['select', 'project', 'select', 'project', 'comparative', 'comparative', 'aggregate', 'aggregate', 'project', 'project', 'arithmetic']