Region
United States
20
Germany
11
Japan
9
Russia (Federation)
9
France
8
Italy
8
Spain
7
Europe
6
Mexico
6
Soviet Union
6
China
5
Great Britain
5
Russia
5
Germany (West)
4
Latin America
4
Netherlands
4
Ryukyu Islands
4
Wales
4
Argentina
3
Dagestan
3
Dagestan (Russia)
3
États-Unis
3
Italie
3
Peru
3
Ukraine
3
Venezuela
3
Bashkortostan (Russia)
2
Canada
2
Finland
2
Greece
2
Hungary
2
India
2
Israel
2
Italien
2
New York (State)
2
New Zealand
2
Norway
2
Okinawa-ken (Japan)
2
Palestine
2
Poland
2
Prussia
2
Switzerland
2
Turkey
2
USA
2
Ufimskai︠a︡ gubernii︠a︡ (R.S.F.S.R.)
2
Uruguay
2
Vietnam
2
Yugoslavia
2
20th century
1
Africa
1
more ...