<|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|>How many weeks was K.Maro at #1?

SQL Table Create Statement:
CREATE TABLE table_27441210_12 (weeks_at__number1 INTEGER, artist VARCHAR)<|end|><|assistant|><codestart type="sql">SELECT MAX(weeks_at__number1) FROM table_27441210_12 WHERE artist = "K.Maro"</codeend><|end|>