As of August 1974 the following countries were represented in ASU; Australia, Austria, Belgium, Britain, Czechoslovakia, Denmark, Finland, France, Germany, Hong Kong, Hungary, Israel, Italy, New Zealand, the Netherlands, Norway, Poland, South Africa, Spain, Switzerland, and the United States.
Oku upisa kosãi ya Susu yunyamo wo 1946, ovina viaco via tumiwa kolofeka ndeci: Ko Austria, ko Belgika, ko Bulgaria, ko China, ko Chekoslovakia, ko Dinamarka, ko Inglaterra, ko Finlandia, ko Fransa, ko Alemanya, ko Helasi, ko Hungria, ko Italia, ko Holanda, ko Noruega, ko Filipina, ko Polonia, kuenda ko Romenia.