What is the week with a date of October 9, 1983, and attendance smaller than 40,492?
CREATE TABLE "schedule" (
  "week" real,
  "date" text,
  "opponent" text,
  "result" text,
  "attendance" real
);
SELECT COUNT("week") FROM "schedule" WHERE "date"='october 9, 1983' AND "attendance"<'40,492';