Region
East Asia
5
East Asia --
4
Asia, Southeastern --
3
India
3
Japan --
3
Asia, Southeastern
2
India --
2
Japan
2
United States
2
United States --
2
Africa --
1
Africa, Southern --
1
Argentina --
1
Brazil --
1
Caribbean Area
1
Caribbean Area --
1
Chile --
1
China --
1
Cuba --
1
Developing countries
1
Developing countries --
1
Europe, Southern
1
Germany (West) --
1
Germany --
1
Latin America
1
North Atlantic region
1
Oceania
1
Philippines
1
Russia (Federation) --
1
Singapore
1
Singapore --
1
United states --
1
Unites States --
1