How many km2  has a Population 2001 Census larger than 274,095, and a District Headquarters of jharsuguda?
CREATE TABLE "population" (
  "district" text,
  "district_headquarters" text,
  "area_km_2" real,
  "population_1991_census" real,
  "population_2001_census" real
);
SELECT COUNT("area_km_2") FROM "population" WHERE "population_2001_census">'274,095' AND "district_headquarters"='jharsuguda';