What date final has 1982 as the year?
CREATE TABLE "past_winners_and_runners_up" (
  "year" text,
  "date_final" text,
  "venue" text,
  "prize_money" text,
  "champion" text,
  "runner_up" text,
  "score_in_final" text,
  "commercial_name" text
);
SELECT "date_final" FROM "past_winners_and_runners_up" WHERE "year"='1982';