Region
United States
70
Great Britain
50
Australia
23
Europe
20
Asia
17
Africa
15
South Africa
15
New Zealand
11
China
10
Developing countries
10
Africa, Southern
9
India
9
Latin America
8
Canada
7
Pacific Area
7
Australasia
5
England
5
Europe, Eastern
5
Middle East
5
European Union countries
4
Scandinavia
4
South Asia
4
Spain
4
East Asia
3
Former Soviet republics
3
France
3
Lithuania
3
Mediterranean Region
3
Soviet Union
3
Africa, Sub-Saharan
2
Asie
2
Caribbean Area
2
Commonwealth countries
2
Europe, Central
2
Germany
2
Indonesia
2
Norway
2
Portugal
2
Russia (Federation)
2
Singapore
2
Southeast Asia
2
Africa, East
1
Africa, Eastern
1
Afrique du Sud
1
Antarctica
1
Arctic regions
1
Arctique
1
Asia, Central
1
Asie centrale
1
Atlantic Ocean Region
1
more ...