Region
Japan --
8
United States --
8
China --
3
European Economic Community countries --
3
China
2
Great Britain --
2
Japan
2
United States
2
ASEAN countries --
1
Africa
1
Africa, Sub-Saharan
1
Africa, Sub-Saharan --
1
Asia, Southeastern
1
Asia, Southeastern --
1
Bulgaria
1
Bulgaria --
1
Developing countries --
1
East Asia
1
East Asia --
1
Europe --
1
France --
1
Germany --
1
Group of Twenty countries --
1
Italy
1
Italy --
1
Malaysia --
1
United states --
1
Uzbekistan --
1
Western countries
1
Western countries --
1