I want to test the ability of students to read a passage and answer questions about it. Could you please come up with a good question for the passage "The percentage of students attending a Gesamtschule varies by Bundesland. In the State of Brandenburg more than 50% of all students attended a Gesamtschule in 2007, while in the State of Bavaria less than 1% did."? 

Gesamtschules are not popular in?