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_37 (in_service INTEGER, aircraft VARCHAR)
  ### Question:
  How many Antonov An-2 Colt aircraft are in service?
  ### Answer:
  SELECT AVG(in_service) FROM table_name_37 WHERE aircraft = "antonov an-2 colt"