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_66 (silver INTEGER, total INTEGER)
  ### Question:
  what is the average silver when the total is more than 20?
  ### Answer:
  SELECT AVG(silver) FROM table_name_66 WHERE total > 20