United States (967)
Canada (135)
Europe (124)
Great Britain (123)
Developing countries (118)
China (70)
India (68)
New York (State) (55)
Asia (52)
California (50)
England (50)
Australia (45)
Latin America (44)
Africa (43)
Japan (40)
Mexico (40)
New York (40)
Germany (39)
Ontario (34)
France (32)
Illinois (28)
European Union countries (26)
Texas (23)
Chicago (22)
Pennsylvania (22)
Italy (20)
Massachusetts (20)
Spain (20)
Toronto (20)
British Columbia (19)
Middle East (19)
Africa, Sub-Saharan (18)
Europe, Eastern (18)
Russia (Federation) (18)
Brazil (17)
Netherlands (17)
East Asia (16)
Greece (16)
South Africa (16)
Southern States (16)
London (15)
South Asia (15)
Southeast Asia (14)
Sweden (14)
Indonesia (13)
Iran (13)
Israel (13)
North America (13)
Boston (11)
Egypt (10)
Ireland (10)
Los Angeles (10)
Michigan (10)
New Jersey (10)
New Zealand (10)
North Carolina (10)
Norway (10)
Ohio (10)
Philadelphia (10)
Afghanistan (9)
Colombia (9)
Georgia (9)
Indiana (9)
Iraq (9)
Kenya (9)
Poland (9)
Scotland (9)
Soviet Union (9)
Turkey (9)
Virginia (9)
West (U.S.) (9)
Africa, North (8)
Arab countries (8)
Argentina (8)
Chile (8)
Korea (South) (8)
Malaysia (8)
New York (N.Y.) (8)
Pacific Area (8)
Wisconsin (8)
Chicago (Ill.) (7)
Denmark (7)
Europe, Western (7)
Former Soviet republics (7)
Ghana (7)
Hong Kong (7)
Kanada (7)
Minnesota (7)
Northern Ireland (7)
Singapore (7)
Syria (7)
Tennessee (7)
Vietnam (7)
Asia, Central (6)
Belgium (6)
Caribbean Area (6)
Central America (6)
Cuba (6)
Ecuador (6)
Ethiopia (6)
