CEVAP:

ASEAN consists of 10 member states with a combined GDP of more than USD 2,55 trillion in 2016, which makes it the world’s 6th largest economy if it were a unified nation. The combined population of ASEAN is 635 million which coincides 8,7 % of the world’s total population that is the third largest following China and India. It covers a total area of 4,5 million square km. 

ASEAN took the place of the Association of South East Asia (ASA), which was formed by the Philippines, Thailand and the Federation of Malaya (Malaysia for the moment) in 1961. It mainly focuses on economic cooperation, encourages trade among ASEAN member countries while also promoting trading activites
between ASEAN and the rest of the world.