Name the most total governorate seats for hewler
CREATE TABLE "seats" (
  "governorate" text,
  "kurdistan_democratic_party" real,
  "patriotic_union_of_kurdistan" real,
  "total_kurdistan_list" real,
  "total_governorate_seats" real
);
SELECT MAX("total_governorate_seats") FROM "seats" WHERE "governorate"='Hewler';