Region
United States
43
Asia
32
Asia --
31
United States --
28
Europe --
26
East Asia
25
East Asia --
22
Asia, Southeastern --
17
China --
17
Europe
13
Europe, Eastern
13
European Union Countries --
13
Pacific Area --
13
Asia, Southeastern
12
Europe, Eastern --
12
Pacific Area
12
Malaysia --
10
Southeast Asia --
10
Soviet Union --
10
Middle East --
9
China
8
European Union Countries
8
European Union countries
8
Korea (South) --
8
Great Britain
7
Great Britain --
7
Singapore --
7
Taiwan --
7
Developing countries --
6
Japan
6
Korea (South)
6
Malaysia
6
Taiwan
6
Australia --
5
Developing countries
5
European Union countries --
5
Japan --
5
Vietnam
5
Vietnam --
5
Australia
4
Indonesia --
4
Korea (North) --
4
Latin America --
4
Middle East
4
Pacific area --
4
Poland --
4
Southeast Asia
4
Soviet Union
4
United States - --
4
Africa --
3
more ...