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_18 (year_made VARCHAR, wheel_arrangement VARCHAR)
  ### Question:
  What is the sum number of years where the wheel arrangement of 0-4-0t?
  ### Answer:
  SELECT COUNT(year_made) FROM table_name_18 WHERE wheel_arrangement = "0-4-0t"