How many points did the opponents score on the game where Sooners' record was 16-5?
CREATE TABLE "schedule" (
  "date" text,
  "location" text,
  "opponent" text,
  "sooners_points" real,
  "opp_points" real,
  "record" text
);
SELECT MAX("opp_points") FROM "schedule" WHERE "record"='16-5';