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 Customers_cards (card_type_code VARCHAR)
  ### Question:
  Show all card type codes and the number of cards in each type.
  ### Answer:
  SELECT card_type_code, COUNT(*) FROM Customers_cards GROUP BY card_type_code