Region
United States --
14
United States
9
Europe --
7
Australia --
3
China --
3
Europe
3
Government policy
3
Asia, Southeastern --
2
Australia
2
Great Britain
2
Haiti
2
Haiti --
2
Asia, Southeastern
1
California
1
California --
1
Canada
1
Canada --
1
Canal Zone
1
Caribbean Area --
1
Central America --
1
China
1
Developing countries --
1
European Union Countries
1
European union countries
1
European union countries --
1
Foreign countries
1
Great Britain --
1
History
1
Jamaica
1
Jamaica --
1
Malaya
1
Malaya --
1
Malaysia
1
Mexico --
1
New Zealand --
1
Panama --
1
Sabah
1
Sabah --
1
Singapore
1
Singapore --
1
South Africa
1