Region
United States
85
United States --
80
Soviet Union --
14
Europe --
11
Soviet Union
10
Japan
9
Iran
8
Japan --
8
East Asia --
7
Iran --
7
China --
6
Developing countries
6
Europe
6
China
5
Indonesia --
5
Russia (Federation) --
5
Developing countries --
4
Europe, Eastern
4
Middle East
4
Middle East --
4
Africa --
3
East Asia
3
Estonia
3
Germany --
3
Indonesia
3
Islamic countries
3
Islamic countries --
3
Israel
3
Korea (South) --
3
Latin America
3
Latin America --
3
Latvia --
3
Pacific Area --
3
Persian Gulf Region --
3
Saudi Arabia
3
Sudan --
3
United states --
3
Africa
2
Africa, Sub-Saharan --
2
Asia --
2
Asia, Central
2
Asia, Southeastern
2
Asia, Southeastern --
2
Azerbaijan --
2
Egypt
2
Egypt --
2
Estonia --
2
Europe, Eastern --
2
Former Soviet republics --
2
France
2
more ...