text: Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
  ### Context:
  CREATE TABLE table_name_17 (year_opened INTEGER, track_name VARCHAR, seating VARCHAR)
  ### Question:
  What is the year opened for Chicagoland Speedway with a seating smaller than 75,000?
  ### Answer:
  SELECT AVG(year_opened) FROM table_name_17 WHERE track_name = "chicagoland speedway" AND seating < 75 OFFSET 000