What's the average population of Mexico if the area is 1,972,550 kilometers squared?
CREATE TABLE "list_of_countries_by_2010_emissions_esti" (
  "country" text,
  "co2_emissions" text,
  "area_in_km_2" real,
  "population" real,
  "emission_person" real
);
SELECT AVG("population") FROM "list_of_countries_by_2010_emissions_esti" WHERE "country"='mexico' AND "area_in_km_2">'1,972,550';