地区
United States
9
Australia
6
Argentina
3
États-Unis
3
Asia
2
Brazil
2
Colombia
2
Developing countries
2
France
2
Germany
2
Great Britain
2
India
2
Italy
2
Korea (South)
2
OECD countries
2
Peru
2
Romania
2
Russia (Federation)
2
Thailand
2
Vietnam
2
2
1
Algeria
1
Australie
1
Bahrain
1
Balkan Peninsula
1
Bangladesh
1
Cameroon
1
Canada
1
Chile
1
China
1
Communist countries
1
Czechoslovakia
1
Eastern Europe
1
Egypt
1
Etats-Unis d'Amérique
1
Europe
1
Europe, Eastern
1
Ghana
1
Greece
1
Indonesia
1
Iran
1
Ireland
1
Japan
1
Kazakhstan
1
Latin America
1
Malaysia
1
Mexico
1
Morocco
1
Mozambique
1
New Zealand
1
更多 ...