what is the least penalty points when the judge e is 72.22?
CREATE TABLE "dressage" (
  "rank" text,
  "rider" text,
  "horse" text,
  "nation" text,
  "judge_e" text,
  "judge_c" text,
  "judge_m" text,
  "penalty_points" real
);
SELECT MIN("penalty_points") FROM "dressage" WHERE "judge_e"='72.22';