Region
United States
100
Afghanistan
5
Europe
5
European Union countries
5
China
4
Mexico
4
Syria
4
Iraq
3
Russia (Federation)
3
Ukraine
3
Africa
2
Bosnia and Herzegovina
2
Canada
2
Croatia
2
Pakistan
2
Somalia
2
Western Hemisphere
2
Albania
1
Asia
1
Brazil
1
Caribbean Area
1
Chad Basin
1
Chile
1
Colombia
1
Congo (Democratic Republic)
1
Developing countries
1
Great Britain
1
Group of Seven countries
1
Kurdistan
1
Macedonia
1
Mexican-American Border Region
1
Mississippi
1
Mozambique
1
Nigeria
1
Pacific Area
1
Peru
1
Russia
1
Serbia and Montenegro
1
Southeast Asia
1
Yemen (Republic)
1