data japanFission yield data from JENDL-4.0 Fission Yield Data were added for fission products in Tables of Nuclear Data. (February 8, 2011) The 2010 edition of WWW Chart of Nuclides and Tables ofJapan is a hhly developed market economy and one of the most affluent countries in the world. In 2025, it had the fourth-largest GDP worldwide. With a population of around