Region
United States
United States --
23
Europe
13
Europe --
12
Soviet Union
4
Middle East
3
Middle East --
3
Soviet Union --
3
Turkey
3
Turkey --
3
Canada
2
Great Britain --
2
Russia (Federation)
2
Russia (Federation) --
2
Asia
1
Canada. Treaties, etc. 1992, Oct.7
1
Developing countries
1
Developing countries --
1
Europe - --
1
Great Britain
1
Mexico
1
New Zealand
1
New Zealand --
1
Pacific Area
1
Panama
1
Panama --
1
Russia
1
Russia --
1
Singapore
1
Singapore --
1
Southeast Asia
1
United States - --
1