Date of 7 september 1996 includes which highest rank athlete?
CREATE TABLE "top_5_jamaican_100_m_athletes_women" (
  "rank" real,
  "time" real,
  "athlete" text,
  "nation" text,
  "date" text,
  "location" text
);
SELECT MAX("rank") FROM "top_5_jamaican_100_m_athletes_women" WHERE "date"='7 september 1996';