East Germany

• Dresden (3)

Mid Germany

• Bielefeld (1)
• Braunschweig (1)
• Hannover (1)
• Kassel (1)

Northeast Germany

• Berlin center (3)
• Berlin south (1)

Northern Germany

• Hamburg (6)
• Hamburger northern surrounding (1)

Rhein-Main Area

• Aachen (2)
• Arnsberg/Hamm (2)
• Bonn (1)
• Cologne (1)
• Cologne/Leverkusen (1)
• Mainz (1)

Ruhr Area

• Dortmund (2)
• Duisburg (1)
• Düsseldorf (1)

Saarland

• Aschaffenburg (2)
• Frankfurt on Main (3)
• Kaiserslautern (1)

South East Germany

• Nuremberg (2)

South Germany

• Munich south (1)
• Ulm (1)

South West Germany

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