{"entity":{"iso2":"SK","iso3":"SVK","name":"Slovakia","slug":"slovak-republic"},"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":-0.0928075},{"date":"1967-01-01","value":-0.304939},{"date":"1968-01-01","value":-0.15026},{"date":"1969-01-01","value":-0.37123},{"date":"1970-01-01","value":0.66291},{"date":"1971-01-01","value":-0.490633},{"date":"1972-01-01","value":0.0700001},{"date":"1973-01-01","value":-0.224},{"date":"1974-01-01","value":0.901},{"date":"1975-01-01","value":-0.221},{"date":"1976-01-01","value":0.017},{"date":"1977-01-01","value":0.389},{"date":"1978-01-01","value":-0.149},{"date":"1979-01-01","value":-0.375},{"date":"1980-01-01","value":0.373},{"date":"1981-01-01","value":-0.291},{"date":"1982-01-01","value":-0.24},{"date":"1983-01-01","value":0.106},{"date":"1984-01-01","value":-0.277},{"date":"1985-01-01","value":0.562},{"date":"1986-01-01","value":-0.442},{"date":"1987-01-01","value":0.257},{"date":"1988-01-01","value":-0.177},{"date":"1989-01-01","value":0.207},{"date":"1990-01-01","value":-0.082},{"date":"1991-01-01","value":-0.472},{"date":"1992-01-01","value":0.529},{"date":"1993-01-01","value":1.53},{"date":"1994-01-01","value":0.888},{"date":"1995-01-01","value":0.525},{"date":"1996-01-01","value":-0.653},{"date":"1997-01-01","value":-0.163},{"date":"1998-01-01","value":0.203},{"date":"1999-01-01","value":0.207},{"date":"2000-01-01","value":0.141},{"date":"2001-01-01","value":0.312},{"date":"2002-01-01","value":0.341},{"date":"2003-01-01","value":-1.788},{"date":"2004-01-01","value":0.62},{"date":"2005-01-01","value":0.538},{"date":"2006-01-01","value":-0.239},{"date":"2007-01-01","value":0.052},{"date":"2008-01-01","value":-0.411668},{"date":"2009-01-01","value":0.328229},{"date":"2010-01-01","value":0.887439},{"date":"2011-01-01","value":-1.47681},{"date":"2012-01-01","value":0.324813},{"date":"2013-01-01","value":0.745},{"date":"2014-01-01","value":-0.639},{"date":"2015-01-01","value":-0.343},{"date":"2016-01-01","value":0.493},{"date":"2017-01-01","value":-0.0349998},{"date":"2018-01-01","value":-0.734},{"date":"2019-01-01","value":0.766},{"date":"2020-01-01","value":0.161},{"date":"2021-01-01","value":-0.259},{"date":"2022-01-01","value":-0.58},{"date":"2023-01-01","value":1.008},{"date":"2024-01-01","value":0.139999},{"date":"2025-01-01","value":-1.86899}],"summary":{"latest_period":"2025-01-01","latest_value":-1.86899,"max":1.53,"mean":0.0122341,"min":-1.86899,"of":77,"rank":63,"trend":"volatile"}}