Region
United States
United States --
12
Japan
4
Japan --
4
China
2
China --
2
United states --
2
Asia --
1
Asia, Southeastern
1
Asia, Southeastern --
1
Central America
1
Central America --
1
Developing countries
1
Germany
1
Germany --
1
Islamic countries
1
Islamic countries --
1
Korea (South)
1
Korea(Souith) --
1
Korea(South)
1
Korea(South) --
1
Pacific Area --
1
Persian Gulf Region --
1
Thailand
1
Thailand --
1
Unites States
1