What is the total population of American Samoa (US) that has less than 16,280 km² arable land, less than 240 km² land area, and has a population density of more than 291?
CREATE TABLE "ranking" (
  "country" text,
  "population_july_2005_est" real,
  "land_area_km" real,
  "pct_of_arable_land_2005_est" text,
  "arable_land_km" real,
  "population_density_pop_per_km" real
);
SELECT COUNT("population_july_2005_est") FROM "ranking" WHERE "arable_land_km"<'16,280' AND "land_area_km"<240 AND "country"='american samoa (us)' AND "population_density_pop_per_km">291;