Region
United States
China
55
Russia (Federation)
30
Mexico
29
Washington (D.C.)
23
European Union countries
22
Canada
18
Pakistan
18
Korea (North)
17
India
14
Iran
14
Japan
14
Latin America
14
Pacific Area
13
Afghanistan
12
Burma
12
Caribbean Area
12
Cuba
11
Iraq
10
North America
10
Korea (South)
9
Developing countries
8
Middle East
8
Syria
8
Central America
7
Colombia
7
Europe
7
Mexican-American Border Region
7
Asia
6
Australia
6
Brazil
6
Great Britain
6
Ukraine
6
Venezuela
6
Russia
5
Vietnam
5
Asia, Eastern
4
California
4
East Asia
4
Foreign countries
4
Haiti
4
Israel
4
Malaysia
4
Nicaragua
4
Peru
4
Philippines
4
Western Hemisphere
4
Africa, Sub-Saharan
3
Africa, West
3
Alaska
3
more ...