East Germany

Mid Germany

• Bielefeld (1)
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• Göttingen (1)

Northeast Germany

Northern Germany

• Buchholz / Lüneburg (1)
• Hamburg (2)
• Heide / Husum (1)

Rhein-Main Area

• Arnsberg/Hamm (1)

Ruhr Area

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• Essen (1)
• Mönchengladbach (4)
• Münster (1)
• Oberhausen (3)
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Saarland

South East Germany

• Hof (4)

South Germany

• Augsburg (1)
• Friedrichshafen (1)
• Ulm (1)

South West Germany

• Göppingen (2)
• Heilbronn (1)
• Konstanz (1)
• Tübingen (9)