what is the reported age when the reported birth date is 22 december 1878?
CREATE TABLE "oldest_norwegian_person_by_region" (
  "region" text,
  "name" text,
  "reported_birth_date" text,
  "reported_death_date" text,
  "reported_age" text
);
SELECT "reported_age" FROM "oldest_norwegian_person_by_region" WHERE "reported_birth_date"='22 december 1878';