{"entity":{"iso2":"ZA","iso3":"ZAF","name":"South Africa","slug":"south-africa"},"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":-0.001},{"date":"1967-01-01","value":-0.01},{"date":"1968-01-01","value":-0.002},{"date":"1969-01-01","value":-0.003},{"date":"1970-01-01","value":0.004},{"date":"1971-01-01","value":0.087},{"date":"1972-01-01","value":0.722},{"date":"1973-01-01","value":0.151},{"date":"1974-01-01","value":0.147},{"date":"1975-01-01","value":-0.012},{"date":"1976-01-01","value":0.756},{"date":"1977-01-01","value":0.068},{"date":"1978-01-01","value":-0.0369999},{"date":"1979-01-01","value":-0.763},{"date":"1980-01-01","value":-0.152},{"date":"1981-01-01","value":0.661},{"date":"1982-01-01","value":-0.637},{"date":"1983-01-01","value":-0.421},{"date":"1984-01-01","value":-0.035},{"date":"1985-01-01","value":0.064},{"date":"1986-01-01","value":0.999},{"date":"1987-01-01","value":-0.00599992},{"date":"1988-01-01","value":1.545},{"date":"1989-01-01","value":-0.403},{"date":"1990-01-01","value":-1.749},{"date":"1991-01-01","value":0.97},{"date":"1992-01-01","value":-1.228},{"date":"1993-01-01","value":-0.606},{"date":"1994-01-01","value":0.928},{"date":"1995-01-01","value":-0.545},{"date":"1996-01-01","value":0.79},{"date":"1997-01-01","value":0.773},{"date":"1998-01-01","value":-0.497},{"date":"1999-01-01","value":-0.869},{"date":"2000-01-01","value":0.375},{"date":"2001-01-01","value":0.62},{"date":"2002-01-01","value":0.363},{"date":"2003-01-01","value":-1.25659},{"date":"2004-01-01","value":0.122527},{"date":"2005-01-01","value":0.382001},{"date":"2006-01-01","value":1.56568},{"date":"2007-01-01","value":-0.0319998},{"date":"2008-01-01","value":-1.606},{"date":"2009-01-01","value":0.192},{"date":"2010-01-01","value":-0.30872},{"date":"2011-01-01","value":1.92092},{"date":"2012-01-01","value":-2.04531},{"date":"2013-01-01","value":0.0854061},{"date":"2014-01-01","value":0.691144},{"date":"2015-01-01","value":-1.06506},{"date":"2016-01-01","value":-0.106},{"date":"2017-01-01","value":0.152},{"date":"2018-01-01","value":0.304689},{"date":"2019-01-01","value":-0.404305},{"date":"2020-01-01","value":0.085388},{"date":"2021-01-01","value":0.816562},{"date":"2022-01-01","value":1.56018},{"date":"2023-01-01","value":-1.1467},{"date":"2024-01-01","value":-0.917239},{"date":"2025-01-01","value":0.720274}],"summary":{"latest_period":"2025-01-01","latest_value":0.720274,"max":1.92092,"mean":0.0292973,"min":-2.04531,"of":77,"rank":19,"trend":"volatile"}}