Region
United States
149
Great Britain
18
Italy
9
Reggio Emilia
9
Canada
6
Australia
4
Colombia
4
Europe
4
California
3
Developing countries
2
États-Unis
2
Germany
2
Indonesia
2
New Zealand
2
Québec (Province)
2
Africa, North
1
Africa, Sub-Saharan
1
Australasia
1
Boulder
1
Brazil
1
Chicago
1
Colorado
1
Developed countries
1
Hawaii
1
Illinois
1
Middle East
1
North America
1
Pacific Area
1
Pennsylvania
1
Québec
1
Santa Monica
1
Tonga
1
United Staes
1