What were the years that the building at 200 sw harrison was considered to be the tallest building?
CREATE TABLE "timeline_of_tallest_buildings" (
  "name" text,
  "street_address" text,
  "years_as_tallest" text,
  "height_feet_m" text,
  "floors" real
);
SELECT "years_as_tallest" FROM "timeline_of_tallest_buildings" WHERE "street_address"='200 sw harrison';