Region
United States
22
California
3
Mexico
3
San Francisco
3
Canada
2
Japan
2
New York Metropolitan Area
2
Asia
1
Bolivia
1
Botswana
1
Developing countries
1
East Asia
1
Former communist countries
1
Germany
1
Great Britain
1
Lima
1
Michigan
1
Nigeria
1
Pacific Area
1
Pakistan
1
Paraguay
1
Persian Gulf States
1
Peru
1
South Asia
1
Spain
1
Uganda
1
West (U.S.)
1
West United States
1
Zambia
1