How many lost when goals for is 43 and the position number is higher than 15?
CREATE TABLE "final_table" (
  "position" real,
  "team" text,
  "played" real,
  "drawn" real,
  "lost" real,
  "goals_for" real,
  "goals_against" real,
  "goal_difference" text,
  "points_1" text
);
SELECT AVG("lost") FROM "final_table" WHERE "goals_for"=43 AND "position">15;