East Germany

Mid Germany

Northeast Germany

• Berlin center (3)
• Berlin north (5)
• Berlin south (4)
• Potsdam/Brandenburg (1)

Northern Germany

Rhein-Main Area

• Mainz (2)

Ruhr Area

• Düsseldorf (1)
• Wuppertal (1)

Saarland

• Heidelberg (1)
• Mannheim (1)

South East Germany

• Amberg (2)

South Germany

South West Germany

• Ludwigsburg/Leonberg (1)
• Stuttgart (2)
• Tübingen (1)