data japanJapan 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 interactiveDirectly accessible data for 170 industries from 150+ countries and over 1 million facts: ... Japan is an East Asian state consisting of numerous islands in the Pacific Ocean. It is well-known for