What was the maximum rank-final value for a score of 14.975?
CREATE TABLE "competitive_history" (
  "year" real,
  "competition" text,
  "location" text,
  "apparatus" text,
  "rank_final" real,
  "score_final" text,
  "rank_qualifying" real,
  "score_qualifying" text
);
SELECT MAX("rank_final") FROM "competitive_history" WHERE "score_final"='14.975';