Region
China --
18
United States --
17
United States
10
China
9
Asia, Southeastern --
8
Malaysia --
7
Africa --
6
Asia --
5
Cuba --
5
Japan --
5
Singapore --
5
Europe, Eastern --
4
Russia (Federation) --
4
Africa
3
Asia
3
Asia, Central --
3
Asia, Southeastern
3
Canada --
3
Central America --
3
Cuba
3
Europe --
3
Great Britain --
3
India --
3
Malaysia
3
Mexico --
3
Soviet Union --
3
Thailand --
3
Vietnam --
3
Australia --
2
Balkan Peninsula --
2
Central America
2
Europe, Western --
2
Foreign countries
2
India
2
Mexico
2
New Zealand --
2
Pacific Area --
2
Russia (Federation)
2
Singapore
2
Somalia --
2
Taiwan --
2
Western Europe --
2
ASEAN --
1
Afghanistan
1
Afghanistan --
1
Africa, Southern
1
Africa, Southern --
1
Arab countries
1
Arab countries --
1
Asia, Central
1
more ...