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_59 (sales VARCHAR, year INTEGER)
  ### Question:
  What were the number of sales before 1991?
  ### Answer:
  SELECT sales FROM table_name_59 WHERE year < 1991