Région
United States
207
China
28
France
19
England
17
Germany
16
Great Britain
14
Connecticut
12
Japan
12
New York
12
New York (State)
12
Pennsylvania
11
Israel
9
Philadelphia
8
London
7
Canada
5
Denmark
5
Europe
5
États-Unis
5
Ireland
5
Italy
5
Soviet Union
5
Ukraine
5
Brazil
4
India
4
Wales
4
États-Unis
4
Chornobylʹ
3
Finland
3
Germany (West)
3
Jena
3
Kiel
3
Middle East
3
Nevada
3
Russia
3
United Kingdom
3
Bern
2
Bonn
2
Boston
2
Dartmoor
2
Dublin
2
Hawaii
2
Maryland
2
Massachusetts
2
Mexico
2
Netherlands
2
New York (État)
2
New Zealand
2
North Carolina
2
Norway
2
Paris
2
plus ...