What is the 2009 estimate population of the region with Manaus as the largest city?
CREATE TABLE "the_five_regions" (
  "name" text,
  "population_2009_estimate" text,
  "largest_city" text,
  "largest_metropolitan_area" text,
  "number_of_states" text
);
SELECT "population_2009_estimate" FROM "the_five_regions" WHERE "largest_city"='manaus';