How many entries for area correspond to a population density of 207.9?
CREATE TABLE "table1_298550_1" (
  "country_with_flag" text,
  "area_km" real,
  "population_1_july_2005_est" real,
  "population_density_per_km" text,
  "capital" text
);
SELECT COUNT("area_km") FROM "table1_298550_1" WHERE "population_density_per_km"='207.9';