East Germany

Mid Germany

• Braunschweig (1)
• Göttingen (1)

Northeast Germany

• Berlin center (2)
• Berlin south (1)
• Potsdam/Brandenburg (2)
• Rostock/Stralsund (1)

Northern Germany

• Bremen (2)
• Hamburg (5)
• Heide / Husum (1)

Rhein-Main Area

• Bonn (1)
• Cologne (3)
• Cologne/Leverkusen (1)

Ruhr Area

• Dortmund (3)
• Duisburg (4)
• Düsseldorf (2)
• Essen (1)
• Osnabruck (1)
• Wuppertal (2)

Saarland

• Darmstadt (2)
• Mannheim (1)

South East Germany

• Ansbach (1)

South Germany

• Augsburg (3)
• Ingolstadt (1)
• Munich north (1)

South West Germany

• Heilbronn (1)
• Karlsruhe (1)
• Stuttgart (1)
• Tübingen (1)