Region
America
1
America --
1
Asia
1
Asia, Southeastern
1
Asia, Southeastern --
1
Brazil
1
Burma
1
Burma --
1
Caribbean Area
2
Caribbean Area --
2
Central America
2
Central America --
2
China
1
China --
2
Commercial policy
1
Developing countries --
2
Europe
1
Europe --
1
Great Britain --
1
Hong Kong (China) --
1
Japan
2
Japan --
2
Latin America --
1
North America
1
North America --
1
Pacific Area
1
Pacific Area --
1
Singapore
1
Singapore --
1
Trinidad and Tobago --
1
United States
4
United States --
5