What is the average position of Eesti Põlevkivi Jõhvi when they had less than 13 points and worse than a -12 goal differential?
CREATE TABLE "eesti_p_levkivi_j_hvi_in_estonian_footba" (
  "year" text,
  "league" text,
  "position" real,
  "goals" real,
  "points" real
);
SELECT AVG("position") FROM "eesti_p_levkivi_j_hvi_in_estonian_footba" WHERE "points"<13 AND "goals">-12;