Region
United States --
9
United States
8
Peru --
3
Africa
2
Australia
2
Great Britain --
2
Peru
2
Soviet Union --
2
Syria
2
Syria --
2
1945-1989
1
Africa --
1
Africa --
1
Asia, Central
1
Asia, Central --
1
Australia --
1
Bolivia --
1
Cuba --
1
Developing countries
1
Developing countries --
1
Great Britain
1
Iran
1
Iran --
1
Israel --
1
Oruro
1
Oruro (Bolivia) --
1
Sarawak
1
Sarawak --
1
Soviet Union
1
United States - --
1
United states --
1
Unites States
1
Venezuela --
1