Region
United States
108
Soviet Union
48
Europe, Eastern
29
Africa
19
China
19
Canada
10
Eastern Europe
10
Great Britain
10
États-Unis
8
Europe de l'Est
7
Afrique
6
Europe
6
Japan
6
Russia
5
Bulgaria
4
Germany
4
Grande-Bretagne
4
Poland
4
Russia (Federation)
4
Australia
3
India
3
Middle East
3
Outer space
3
Tropics
3
Allemagne
2
Bolivia
2
Developing countries
2
Eurasia
2
France
2
Germany (West)
2
Iran
2
Latin America
2
New Zealand
2
South Africa
2
Spain
2
URSS
2
- Eurasia
1
Aegean Islands
1
Aegean Islands (Greece and Turkey)
1
Africa, Northeast
1
Amérique latine
1
Asia
1
Asie
1
Australie
1
Belgium
1
Brazil
1
Chine
1
Communist countries
1
Cuba
1
Cyprus
1
more ...