What is the lowest Attendance against the tampa bay buccaneers, with Points Against of less than 7?
CREATE TABLE "schedule" (
  "week" real,
  "date" text,
  "result" text,
  "record" text,
  "opponent" text,
  "points_for" real,
  "points_against" real,
  "first_downs" real,
  "attendance" real
);
SELECT MIN("attendance") FROM "schedule" WHERE "opponent"='tampa bay buccaneers' AND "points_against"<7;