Region
United States
87
Great Britain
35
India
18
Canada
15
Australia
13
Europe
12
États-Unis
12
Iran
11
United Kingdom
11
Africa
8
New Zealand
8
Turkey
8
China
7
Grande-Bretagne
6
Asia
5
Brazil
4
Developing countries
4
Japan
4
South Africa
4
Middle East
3
OECD countries
3
Saudi Arabia
3
Alaska
2
Australie
2
Central Europe
2
Egypt
2
Europe, Central
2
Greece
2
Pakistan
2
Periodicals
2
Poland
2
Spain
2
Africa, Southern
1
Amérique du Nord
1
Antarctic Regions
1
Arctic Regions
1
Arizona
1
Asia, Central
1
Australasia
1
Belgium
1
Bosnia and Hercegovina
1
Bosnia and Herzegovina
1
British Columbia
1
Colombia
1
Croatia
1
Denmark
1
Eastern Europe
1
Erde
1
Europa
1
Europe centrale
1
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