{"entity":{"iso2":"JP","iso3":"JPN","name":"Japan","slug":"japan"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"nuclear-primary-energy","source":"Energy Institute - Statistical Review of World Energy (2026); Smil (2017); U.S. Energy Information Administration (2026) \u2013 with major processing by Our World in Data","source_url":"https://ourworldindata.org/grapher/nuclear-primary-energy","title":"Share of primary energy from nuclear","unit":"%"},"observations":[{"date":"1965-01-01","value":0.00450141},{"date":"1966-01-01","value":0.0919944},{"date":"1967-01-01","value":0.0867149},{"date":"1968-01-01","value":0.130419},{"date":"1969-01-01","value":0.115107},{"date":"1970-01-01","value":0.424021},{"date":"1971-01-01","value":0.709687},{"date":"1972-01-01","value":0.782306},{"date":"1973-01-01","value":0.720546},{"date":"1974-01-01","value":1.48675},{"date":"1975-01-01","value":1.91567},{"date":"1976-01-01","value":2.48846},{"date":"1977-01-01","value":2.31066},{"date":"1978-01-01","value":4.2214},{"date":"1979-01-01","value":4.93538},{"date":"1980-01-01","value":6.03145},{"date":"1981-01-01","value":6.51626},{"date":"1982-01-01","value":7.82176},{"date":"1983-01-01","value":8.47544},{"date":"1984-01-01","value":9.53958},{"date":"1985-01-01","value":11.0947},{"date":"1986-01-01","value":11.5024},{"date":"1987-01-01","value":12.5118},{"date":"1988-01-01","value":10.9978},{"date":"1989-01-01","value":11.3669},{"date":"1990-01-01","value":11.507},{"date":"1991-01-01","value":12.0478},{"date":"1992-01-01","value":12.3108},{"date":"1993-01-01","value":13.8541},{"date":"1994-01-01","value":13.7507},{"date":"1995-01-01","value":14.8505},{"date":"1996-01-01","value":15.0282},{"date":"1997-01-01","value":15.9783},{"date":"1998-01-01","value":16.5279},{"date":"1999-01-01","value":15.8117},{"date":"2000-01-01","value":15.6315},{"date":"2001-01-01","value":15.8465},{"date":"2002-01-01","value":15.5501},{"date":"2003-01-01","value":11.4636},{"date":"2004-01-01","value":14.0174},{"date":"2005-01-01","value":14.0564},{"date":"2006-01-01","value":14.6318},{"date":"2007-01-01","value":13.5404},{"date":"2008-01-01","value":12.4692},{"date":"2009-01-01","value":14.8095},{"date":"2010-01-01","value":14.8316},{"date":"2011-01-01","value":8.76978},{"date":"2012-01-01","value":0.985733},{"date":"2013-01-01","value":0.810382},{"date":"2014-01-01","value":0.0},{"date":"2015-01-01","value":0.263168},{"date":"2016-01-01","value":1.04235},{"date":"2017-01-01","value":1.70361},{"date":"2018-01-01","value":2.89517},{"date":"2019-01-01","value":3.95348},{"date":"2020-01-01","value":2.8087},{"date":"2021-01-01","value":3.827},{"date":"2022-01-01","value":3.27262},{"date":"2023-01-01","value":5.03075},{"date":"2024-01-01","value":5.5772},{"date":"2025-01-01","value":6.22574}],"summary":{"latest_period":"2025-01-01","latest_value":6.22574,"max":16.5279,"mean":7.57315,"min":0.0,"of":215,"rank":21,"trend":"volatile"}}