Show the apartment type codes and the corresponding number of apartments sorted by the number of apartments in ascending order.
SELECT apt_type_code ,  COUNT(*) FROM Apartments GROUP BY apt_type_code ORDER BY COUNT(*) ASC
SELECT apt_type_code ,  COUNT(*) FROM Apartments GROUP BY apt_type_code ORDER BY COUNT(*) ASC
[{'apt_type_code': 'Studio', 'COUNT(*)': 4}, {'apt_type_code': 'Duplex', 'COUNT(*)': 5}, {'apt_type_code': 'Flat', 'COUNT(*)': 6}]