Region
United States
791
Canada
25
Mexico
23
China
20
Colorado
17
Great Britain
17
Former Soviet republics
15
Australia
14
France
11
Bulgaria
9
Northern Mariana Islands
9
European Union countries
7
Germany
7
Japan
7
Mongolia
7
New Zealand
7
Russia (Federation)
7
Israel
6
Mexican-American Border Region
6
Singapore
6
Albania
5
Central America
5
Romania
5
Thailand
5
Brazil
4
Hong Kong
4
Hungary
4
Sweden
4
Afghanistan
3
Argentina
3
East Asia
3
Greece
3
Italy
3
Netherlands
3
Poland
3
Soviet Union
3
Arizona
2
Chile
2
Czechoslovakia
2
Ireland
2
Korea (South)
2
Kuwait
2
Malaysia
2
Southeast Asia
2
Spain
2
Switzerland
2
Ukraine
2
Vietnam (Republic)
2
Africa
1
America
1
more ...