Region
United States --
12
United States
7
Europe, Western
2
Europe, Western --
2
United states --
2
Asia
1
Asia --
1
Asia, Southeastern --
1
Bosnia and Hercegovina --
1
China --
1
Developing countries
1
East Asia --
1
Europe, Eastern
1
European Union countries --
1
Former Yugoslavia --
1
Great Britain --
1
Hiroshima-shi (Japan) --
1
Korea (South)
1
Korea (South) --
1
Nagasaki-shi(Japan) --
1
Pakistan
1
Pakistan --
1
Southeast Asia --
1
Thailand
1
Thailand --
1