{"entity":{"iso2":"ES","iso3":"ESP","name":"Spain","slug":"spain"},"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":7.571},{"date":"1967-01-01","value":-4.601},{"date":"1968-01-01","value":1.731},{"date":"1969-01-01","value":6.215},{"date":"1970-01-01","value":-2.831},{"date":"1971-01-01","value":4.044},{"date":"1972-01-01","value":3.653},{"date":"1973-01-01","value":-6.557},{"date":"1974-01-01","value":1.656},{"date":"1975-01-01","value":-4.503},{"date":"1976-01-01","value":-5.133},{"date":"1977-01-01","value":18.696},{"date":"1978-01-01","value":0.623001},{"date":"1979-01-01","value":6.146},{"date":"1980-01-01","value":-16.847},{"date":"1981-01-01","value":-7.608},{"date":"1982-01-01","value":4.389},{"date":"1983-01-01","value":0.716002},{"date":"1984-01-01","value":4.437},{"date":"1985-01-01","value":-0.197001},{"date":"1986-01-01","value":-4.793},{"date":"1987-01-01","value":0.889002},{"date":"1988-01-01","value":7.863},{"date":"1989-01-01","value":-15.897},{"date":"1990-01-01","value":6.065},{"date":"1991-01-01","value":1.868},{"date":"1992-01-01","value":-8.362},{"date":"1993-01-01","value":5.457},{"date":"1994-01-01","value":3.803},{"date":"1995-01-01","value":-5.068},{"date":"1996-01-01","value":16.69},{"date":"1997-01-01","value":-5.024},{"date":"1998-01-01","value":-0.772999},{"date":"1999-01-01","value":-11.142},{"date":"2000-01-01","value":6.707},{"date":"2001-01-01","value":11.457},{"date":"2002-01-01","value":-18.107},{"date":"2003-01-01","value":18.134},{"date":"2004-01-01","value":-9.378},{"date":"2005-01-01","value":-13.804},{"date":"2006-01-01","value":8.018},{"date":"2007-01-01","value":1.343},{"date":"2008-01-01","value":-3.701},{"date":"2009-01-01","value":2.82048},{"date":"2010-01-01","value":15.6832},{"date":"2011-01-01","value":-11.4397},{"date":"2012-01-01","value":-10.051},{"date":"2013-01-01","value":16.2349},{"date":"2014-01-01","value":2.3891},{"date":"2015-01-01","value":-11.029},{"date":"2016-01-01","value":8.24557},{"date":"2017-01-01","value":-18.0636},{"date":"2018-01-01","value":16.012},{"date":"2019-01-01","value":-11.8479},{"date":"2020-01-01","value":8.02065},{"date":"2021-01-01","value":-0.880728},{"date":"2022-01-01","value":-12.036},{"date":"2023-01-01","value":7.406},{"date":"2024-01-01","value":9.41873},{"date":"2025-01-01","value":-0.669262}],"summary":{"latest_period":"2025-01-01","latest_value":-0.669262,"max":18.696,"mean":0.234308,"min":-18.107,"of":77,"rank":54,"trend":"volatile"}}