Netherlands/Belgium/ Luxembourg/France Netherlands/Austria/ Luxembourg/France Belgium/ Luxembourg/ France/Italy Austria/France/ Belgium/Luxembourg
Stutgart Hamburg Berlin Essen
Poland/Czech Republic Italy/Czech Republic Poland/Austria Switzerland/Czech Republic
Sweden Denmark Finland Russia
Berlin Munich Hamburg Essen
Baltic Sea/ Barents Sea North Sea/ Bering Sea Barents Sea/ Bering Sea North Sea/ Baltic Sea
Switzerland/Austria Italy/Austria Switzerland/Italy Switzerland/France
8.3 million 103 million 38 million 83 million