What is the Points with an Against smaller than 16?
CREATE TABLE "apea_s_campeonato_paulista" (
  "position" real,
  "team" text,
  "points" real,
  "played" real,
  "drawn" real,
  "lost" real,
  "against" real,
  "difference" text
);
SELECT AVG("points") FROM "apea_s_campeonato_paulista" WHERE "against"<16;