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_55 (enrollment INTEGER, team_nickname VARCHAR, founded VARCHAR)
  ### Question:
  what is the average enrollment when the team nickname is wolverines and founded is after 1817?
  ### Answer:
  SELECT AVG(enrollment) FROM table_name_55 WHERE team_nickname = "wolverines" AND founded > 1817