For the match that had detail of 2001 nrl grand final, what was the lowest total points?
CREATE TABLE "highest_scoring_grand_finals" (
  "total_points" real,
  "score" text,
  "premiers" text,
  "runners_up" text,
  "details" text
);
SELECT MIN("total_points") FROM "highest_scoring_grand_finals" WHERE "details"='2001 nrl grand final';