what is the maximum # with original airdate being march 14, 2001
CREATE TABLE "season_2" (
  "num" real,
  "episode_title" text,
  "writer_s" text,
  "director" text,
  "prod_code" text,
  "original_airdate" text
);
SELECT MAX("num") FROM "season_2" WHERE "original_airdate"='March 14, 2001';