Subject Region
United States
16
Developing countries
4
Africa, North
3
Canada
3
Middle East
3
Mexico
2
Texas
2
Arab countries
1
Asia, Central
1
Caribbean Area
1
Europe, Eastern
1
European Union countries
1
Gabon
1
Japan
1
Latin America
1
Mali
1
Mediterranean Region
1
Nigeria
1
OECD countries
1
Ontario
1
Philippines
1
Qatar
1
Saudi Arabia
1
Wall Street (New York, N.Y.)
1