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_177766_1 (per VARCHAR, rank VARCHAR)
  ### Question:
  This constellation with a ranking of 51 has how many percentages on record?
  ### Answer:
  SELECT COUNT(per) AS ­cent­age FROM table_177766_1 WHERE rank = 51