What are the codes of card types that have 5 or more cards?
SELECT card_type_code FROM Customers_cards GROUP BY card_type_code HAVING count(*)  >=  5
SELECT card_type_code FROM Customers_cards GROUP BY card_type_code HAVING count(*)  >=  5
[{'card_type_code': 'Credit'}, {'card_type_code': 'Debit'}]