Region
China
40
China --
27
Europe, Eastern
23
Europe, Eastern --
23
Soviet Union
18
Soviet Union --
18
Russia (Federation) --
15
Russia (Federation)
13
Malaya --
12
Malaya
11
Former Soviet republics --
10
Former Soviet republics
9
Vietnam --
8
Asia, Southeastern
7
Malaysia --
7
Vietnam
7
Singapore
6
Africa
5
Asia, Central
5
Asia, Central --
5
Cuba
5
Russia
5
Russia --
5
Singapore --
5
Asia
4
Malaysia
4
Poland --
4
Yugoslavia
4
Africa --
3
Asia, Southeastern --
3
East Asia --
3
Europe
3
Korea (North)
3
Korea (North) --
3
Poland
3
Azerbaijan
2
Azerbaijan --
2
Baltic States
2
Bulgaria
2
Bulgaria --
2
Cuba --
2
Europe, Central
2
Hungary --
2
India
2
India --
2
Indonesia
2
Latin America
2
Philippines
2
Philippines --
2
Thailand
2
more ...