What is the amount of Tickets Sold/ Available at the Venue of hippodrome?
CREATE TABLE "box_office_score_data" (
  "venue" text,
  "city" text,
  "tickets_sold_available" text,
  "gross_revenue_1979" text,
  "gross_revenue_2012" text
);
SELECT "tickets_sold_available" FROM "box_office_score_data" WHERE "venue"='hippodrome';