How much Population density (per km²) has a Name of total northern villages, and a Population (2006) larger than 11414?
CREATE TABLE "northern_villages" (
  "name" text,
  "population_2011" real,
  "population_2006" real,
  "change_pct" real,
  "land_area_km" real,
  "population_density_per_km" real
);
SELECT COUNT("population_density_per_km") FROM "northern_villages" WHERE "name"='total northern villages' AND "population_2006">11414;