How many wins had less than 91 points in 25th rank?
CREATE TABLE "grand_prix_career_statistics" (
  "year" real,
  "class" text,
  "team" text,
  "points" real,
  "rank" text,
  "wins" real
);
SELECT "wins" FROM "grand_prix_career_statistics" WHERE "points"<91 AND "rank"='25th';