What year was she ranked 16th with over 12 points?
CREATE TABLE "grand_prix_motorcycle_racing_results" (
  "year" real,
  "class" text,
  "team" text,
  "points" real,
  "rank" text,
  "wins" real
);
SELECT COUNT("year") FROM "grand_prix_motorcycle_racing_results" WHERE "rank"='16th' AND "points">12;