How many people, in terms of percentage, were either White, African American, or American Indian?
return White people ;return African American  people ;return American  Indian people ;return percentage of #1 ;return percentage of #2 ;return percentage of #3 ;return sum of #4 ,    #5 ,  #6
['select', 'select', 'select', 'project', 'project', 'project', 'arithmetic']