<|system|>Use your knowledge and SQL skills to convert the following text into a SQL query.
Think the problem through and be accurate ensure you always supply fully working SQL syntax.

SQL Statments should be wrapped in <codestart type="sql"> and </codeend> tags.

Example output:
<codestart type="sql">SELECT * FROM table_name;</codeend>
<codestart type="sql">SELECT column_name FROM table_name WHERE column_name = 'value';</codeend><|end|><|user|>Show the apartment type codes and the corresponding number of apartments sorted by the number of apartments in ascending order.

SQL Table Create Statement:
CREATE TABLE Apartments (apt_type_code VARCHAR)<|end|><|assistant|><codestart type="sql">SELECT apt_type_code, COUNT(*) FROM Apartments GROUP BY apt_type_code ORDER BY COUNT(*)</codeend><|end|>