What is the average Year when there were more than 3 points, for MV Agusta and ranked 10th?
CREATE TABLE "motorcycle_grand_prix_results" (
  "year" real,
  "class" text,
  "team" text,
  "points" real,
  "rank" text,
  "wins" real
);
SELECT AVG("year") FROM "motorcycle_grand_prix_results" WHERE "points">3 AND "team"='mv agusta' AND "rank"='10th';