{"entity":{"iso2":null,"iso3":null,"name":"OECD (EI)","slug":"oecd-ei"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"annual-change-hydro","source":"Energy Institute - Statistical Review of World Energy (2026); Smil (2017) \u2013 with major processing by Our World in Data","source_url":"https://ourworldindata.org/grapher/annual-change-hydro","title":"Annual change in primary energy from hydropower","unit":"terawatt-hours"},"observations":[{"date":"1966-01-01","value":41.1583},{"date":"1967-01-01","value":20.2057},{"date":"1968-01-01","value":21.7329},{"date":"1969-01-01","value":37.6804},{"date":"1970-01-01","value":24.1356},{"date":"1971-01-01","value":36.1871},{"date":"1972-01-01","value":39.1011},{"date":"1973-01-01","value":2.19891},{"date":"1974-01-01","value":90.663},{"date":"1975-01-01","value":1.2207},{"date":"1976-01-01","value":-36.31},{"date":"1977-01-01","value":7.03271},{"date":"1978-01-01","value":71.7736},{"date":"1979-01-01","value":46.1672},{"date":"1980-01-01","value":-6.87476},{"date":"1981-01-01","value":16.814},{"date":"1982-01-01","value":30.6199},{"date":"1983-01-01","value":51.3292},{"date":"1984-01-01","value":3.25024},{"date":"1985-01-01","value":-1.31641},{"date":"1986-01-01","value":-5.76733},{"date":"1987-01-01","value":1.93176},{"date":"1988-01-01","value":15.0691},{"date":"1989-01-01","value":-32.0844},{"date":"1990-01-01","value":38.7008},{"date":"1991-01-01","value":14.4551},{"date":"1992-01-01","value":-12.9814},{"date":"1993-01-01","value":76.537},{"date":"1994-01-01","value":-42.6469},{"date":"1995-01-01","value":87.2048},{"date":"1996-01-01","value":36.0967},{"date":"1997-01-01","value":25.3665},{"date":"1998-01-01","value":-33.4504},{"date":"1999-01-01","value":13.2657},{"date":"2000-01-01","value":4.23315},{"date":"2001-01-01","value":-101.765},{"date":"2002-01-01","value":23.4308},{"date":"2003-01-01","value":-23.6294},{"date":"2004-01-01","value":30.9956},{"date":"2005-01-01","value":11.8439},{"date":"2006-01-01","value":23.665},{"date":"2007-01-01","value":-35.3638},{"date":"2008-01-01","value":55.5004},{"date":"2009-01-01","value":-17.0428},{"date":"2010-01-01","value":40.0065},{"date":"2011-01-01","value":36.8364},{"date":"2012-01-01","value":4.42969},{"date":"2013-01-01","value":17.36},{"date":"2014-01-01","value":-21.7322},{"date":"2015-01-01","value":-13.1208},{"date":"2016-01-01","value":28.2618},{"date":"2017-01-01","value":-3.93555},{"date":"2018-01-01","value":32.9668},{"date":"2019-01-01","value":-34.0907},{"date":"2020-01-01","value":39.0887},{"date":"2021-01-01","value":-45.1547},{"date":"2022-01-01","value":-55.3802},{"date":"2023-01-01","value":-5.12781},{"date":"2024-01-01","value":53.2432},{"date":"2025-01-01","value":-53.0052}],"summary":{"latest_period":"2025-01-01","latest_value":-53.0052,"max":90.663,"mean":11.183,"min":-101.765,"of":3,"rank":3,"trend":"volatile"}}