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_88 (area__sq_mi_ INTEGER, administrative_division VARCHAR, national_share___percentage_ VARCHAR)
  ### Question:
  What is the average area in square miles for the hunan administrative division with a national share less than 2.19%?
  ### Answer:
  SELECT AVG(area__sq_mi_) FROM table_name_88 WHERE administrative_division = "hunan" AND national_share___percentage_ < 2.19