Region
United States --
70
United States
34
Europe --
5
Asia
3
Canada --
3
Asia --
2
Australia --
2
European Economic Community countries --
2
Soviet Union --
2
Australia
1
Europe
1
European Economic Community countries
1
European Union Countries --
1
Japan - --
1
Japan --
1
Malaysia
1
Malaysia --
1
New Zealand --
1
North Atlantic --
1
United States - --
1