Region
United States
United States --
19
Singapore
4
Singapore --
4
Canada
3
Japan
3
Australia --
2
Japan --
2
Asia
1
Australia
1
Canada --
1
Canada. Treaties, etc. 1992, Oct.7
1
European Union Countries
1
European Union countries
1
European Union countries --
1
General Agreement on Tariffs and Trade (Organization)
1
Germany (West)
1
Korea ()South) --
1
Korea (South)
1
Korea (South) --
1
Malaysia
1
Southeast Asia
1
Southeast Asia --
1
United States. Congress --
1