Argentina & Bolivia (2003)        

Bangladesh & India (2001)        

Egypt (2000)    

Greece (2000)    

Costa Rica (2000)    

Indonesia (1999)    

India & Nepal (1999)        

Singapore & Malaysia (1999)        

France & the Netherlands (1998)        

Dominican Republic & Haiti (1995-96)        

South Korea (1995)    

South Africa & Swaziland (1994)        

China (1990-91)    

Togo (1987-89)    

Swaziland (1984-87)    

West Africa (1987-89)        

Liberia, Guinea Bissau, Ghana, Cote d'Ivoire, Guinea Conakry, Senegal, The Gambia, Nigeria, Niger, Burkina Faso, Mali, Mauritania

Southern Africa (1984-87)        

Lesotho, Mozambique, Namibia, Angola, Botswana, Zimbabwe, Zambia, Malawi, Tanzania, Kenya