Region
Developing countries --
4
European Economic Community countries --
3
Europe --
2
Japan --
2
United States --
2
Asia, Southeastern
1
Asia, Southeastern --
1
Britain
1
Developing countries
1
East Asia
1
East Asia --
1
Eastern Europe --
1
Great Britain
1
Great Britain --
1
Japan
1
Japan - --
1
Korea --
1
Malaysia
1
United Kingdom
1
United States
1
United States - --
1