How many people does the KRF Party preside over?
CREATE TABLE "municipalities_of_midhordland" (
  "name" text,
  "innhabitants" real,
  "area" real,
  "mayor" text,
  "party" text,
  "municipal_code" real,
  "language_form" text
);
SELECT AVG("innhabitants") FROM "municipalities_of_midhordland" WHERE "party"='krf';