East Germany

Mid Germany

Northeast Germany

• Berlin center (1)
• Berlin north (2)
• Berlin south (1)
• Potsdam/Brandenburg (1)

Northern Germany

• Bremen (1)
• Hamburg (2)

Rhein-Main Area

Ruhr Area

• Essen (1)

Saarland

South East Germany

• Schweinfurt (1)

South Germany

South West Germany

• Tübingen (1)