Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE Apartments (apt_type_code VARCHAR)

### Question ###
Show the apartment type codes and the corresponding number of apartments sorted by the number of apartments in ascending order.

### Accurate SQL ###

SELECT apt_type_code, COUNT(*) FROM Apartments GROUP BY apt_type_code ORDER BY COUNT(*)