What is the minimum number of points given up to the Baltimore Colts
CREATE TABLE "schedule" (
  "game" real,
  "date" text,
  "opponent" text,
  "result" text,
  "bills_points" real,
  "opponents" real,
  "bills_first_downs" real,
  "record" text
);
SELECT MIN("opponents") FROM "schedule" WHERE "opponent"='Baltimore Colts';