{"entity":{"iso2":"IS","iso3":"ISL","name":"Iceland","slug":"iceland"},"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":-0.0168},{"date":"1967-01-01","value":0.0406},{"date":"1968-01-01","value":0.0224},{"date":"1969-01-01","value":0.1732},{"date":"1970-01-01","value":0.5528},{"date":"1971-01-01","value":0.1267},{"date":"1972-01-01","value":0.163},{"date":"1973-01-01","value":0.4784},{"date":"1974-01-01","value":0.0772002},{"date":"1975-01-01","value":-0.0526001},{"date":"1976-01-01","value":0.1439},{"date":"1977-01-01","value":0.1702},{"date":"1978-01-01","value":0.0853},{"date":"1979-01-01","value":0.2141},{"date":"1980-01-01","value":0.2341},{"date":"1981-01-01","value":0.0313001},{"date":"1982-01-01","value":0.3226},{"date":"1983-01-01","value":0.1808},{"date":"1984-01-01","value":0.15},{"date":"1985-01-01","value":-0.0749998},{"date":"1986-01-01","value":0.1789},{"date":"1987-01-01","value":0.0722001},{"date":"1988-01-01","value":0.25},{"date":"1989-01-01","value":0.0492001},{"date":"1990-01-01","value":-0.0595002},{"date":"1991-01-01","value":0.0},{"date":"1992-01-01","value":0.150598},{"date":"1993-01-01","value":0.1567},{"date":"1994-01-01","value":0.0482974},{"date":"1995-01-01","value":0.167892},{"date":"1996-01-01","value":0.0851269},{"date":"1997-01-01","value":0.438992},{"date":"1998-01-01","value":0.414271},{"date":"1999-01-01","value":0.426265},{"date":"2000-01-01","value":0.308647},{"date":"2001-01-01","value":0.222107},{"date":"2002-01-01","value":0.398088},{"date":"2003-01-01","value":0.111645},{"date":"2004-01-01","value":0.0495658},{"date":"2005-01-01","value":-0.116607},{"date":"2006-01-01","value":0.273711},{"date":"2007-01-01","value":1.10474},{"date":"2008-01-01","value":4.0337},{"date":"2009-01-01","value":-0.148089},{"date":"2010-01-01","value":0.312738},{"date":"2011-01-01","value":-0.0852432},{"date":"2012-01-01","value":-0.170309},{"date":"2013-01-01","value":0.526314},{"date":"2014-01-01","value":0.0101709},{"date":"2015-01-01","value":0.907755},{"date":"2016-01-01","value":-0.311173},{"date":"2017-01-01","value":0.589126},{"date":"2018-01-01","value":-0.245926},{"date":"2019-01-01","value":-0.35133},{"date":"2020-01-01","value":-0.304494},{"date":"2021-01-01","value":0.647028},{"date":"2022-01-01","value":0.391722},{"date":"2023-01-01","value":0.0302696},{"date":"2024-01-01","value":-0.621791},{"date":"2025-01-01","value":-0.447055}],"summary":{"latest_period":"2025-01-01","latest_value":-0.447055,"max":4.0337,"mean":0.208607,"min":-0.621791,"of":77,"rank":50,"trend":"volatile"}}