Região
Asia
2
Australia
8
Australie
3
Bahia (State)
1
Brazil
5
British Columbia
1
California
1
Canada
8
Colombia
2
Colombie-Britannique
1
Developing countries
1
Etats-Unis d'Amérique
1
États-Unis
1
États-unis
1
Grande-Bretagne
1
Great Britain
2
Hungary
1
Ireland
2
Islamic countries
1
Latin America
3
Massachusetts
1
Mexico
1
Michigan
2
Pacific Area
1
Pennsylvania
1
Peru
2
Royaume-Uni
1
South Africa
1
Spain
1
Turkey
1
Ukraine
1
United States
28