How many points did the opposing team score on Dec. 19, 1982?
CREATE TABLE "schedule" (
  "game" real,
  "date" text,
  "opponent" text,
  "result" text,
  "bills_points" real,
  "opponents" real,
  "record" text,
  "attendance" real
);
SELECT MAX("opponents") FROM "schedule" WHERE "date"='Dec. 19';