East Germany

Mid Germany

• Gießen (1)
• Hannover (3)
• Hannover western surrounding (1)
• Herford (1)
• Kassel (2)

Northeast Germany

• Berlin center (11)
• Berlin south (4)
• Potsdam/Brandenburg (1)

Northern Germany

• Bremen (1)
• Hamburg (10)
• Hamburger northern surrounding (2)

Rhein-Main Area

• Aachen (1)
• Arnsberg/Hamm (3)
• Cologne (1)
• Mainz (1)
• Siegen (1)

Ruhr Area

• Dortmund (1)
• Düsseldorf (2)
• Essen (1)
• Münster (1)
• Osnabruck (1)
• Wuppertal (2)

Saarland

• Aschaffenburg (2)
• Darmstadt (1)
• Frankfurt on Main (5)
• Kaiserslautern (2)
• Mannheim (1)
• Saarbrücken (1)
• Wiesbaden (1)

South East Germany

• Nuremberg (2)
• Würzburg (1)

South Germany

• Munich north (1)
• Munich south (1)
• Ulm (1)

South West Germany

• Freiburg (1)
• Göppingen (1)
• Heilbronn (2)
• Karlsruhe (3)
• Konstanz (1)
• Offenburg (1)
• Pforzheim (1)
• Stuttgart (2)
• Tübingen (3)