{"entity":{"iso2":"PT","iso3":"PRT","name":"Portugal","slug":"portugal"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"percentage-change-energy-by-source","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/percentage-change-energy-by-source","title":"Year-to-year percentage change in primary energy use by source","unit":"%"},"observations":[{"date":"1990-01-01","value":-100.0},{"date":"1997-01-01","value":0.0},{"date":"1998-01-01","value":-20.0},{"date":"1999-01-01","value":37.5},{"date":"2000-01-01","value":27.2727},{"date":"2001-01-01","value":14.2857},{"date":"2002-01-01","value":12.5},{"date":"2003-01-01","value":44.4444},{"date":"2004-01-01","value":11.5385},{"date":"2005-01-01","value":31.0345},{"date":"2006-01-01","value":31.579},{"date":"2007-01-01","value":380.0},{"date":"2008-01-01","value":70.8333},{"date":"2009-01-01","value":290.244},{"date":"2010-01-01","value":34.375},{"date":"2011-01-01","value":31.1628},{"date":"2012-01-01","value":39.3617},{"date":"2013-01-01","value":21.9186},{"date":"2014-01-01","value":30.9255},{"date":"2015-01-01","value":26.9144},{"date":"2016-01-01","value":3.24622},{"date":"2017-01-01","value":20.6813},{"date":"2018-01-01","value":1.31049},{"date":"2019-01-01","value":33.5323},{"date":"2020-01-01","value":27.8383},{"date":"2021-01-01","value":30.402},{"date":"2022-01-01","value":57.2974},{"date":"2023-01-01","value":46.6326},{"date":"2024-01-01","value":37.3643},{"date":"2025-01-01","value":23.1941}],"summary":{"latest_period":"2025-01-01","latest_value":23.1941,"max":380.0,"mean":43.2463,"min":-100.0,"of":76,"rank":39,"trend":"volatile"}}