data japan 2023Japan joined the OECD in 1964, becoming the Organisation’s 21st member country and its first from the Asia-Pacific region. it is one of 38 OECD Members. ... Key data and interactiveThe Gross Domestic Product (GDP) in Japan was worth 4204.49 billion US dollars in 2025, according to official data from the World Bank. The GDP value of Japan represents 3.99