{"entity":{"iso2":"BG","iso3":"BGR","name":"Bulgaria","slug":"bulgaria"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"annual-change-oil","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-oil","title":"Annual change in primary energy from oil","unit":"terawatt-hours"},"observations":[{"date":"1966-01-01","value":6.15864},{"date":"1967-01-01","value":12.8483},{"date":"1968-01-01","value":11.6157},{"date":"1969-01-01","value":16.9407},{"date":"1970-01-01","value":14.7605},{"date":"1971-01-01","value":10.5899},{"date":"1972-01-01","value":4.65546},{"date":"1973-01-01","value":6.60356},{"date":"1974-01-01","value":5.09888},{"date":"1975-01-01","value":7.97389},{"date":"1976-01-01","value":5.52553},{"date":"1977-01-01","value":5.80025},{"date":"1978-01-01","value":4.51117},{"date":"1979-01-01","value":4.76208},{"date":"1980-01-01","value":3.46059},{"date":"1981-01-01","value":-17.9347},{"date":"1982-01-01","value":-4.55397},{"date":"1983-01-01","value":-4.88585},{"date":"1984-01-01","value":-5.46709},{"date":"1985-01-01","value":-10.0396},{"date":"1986-01-01","value":6.60766},{"date":"1987-01-01","value":-5.03502},{"date":"1988-01-01","value":7.6339},{"date":"1989-01-01","value":-3.2204},{"date":"1990-01-01","value":-9.22475},{"date":"1991-01-01","value":-39.5003},{"date":"1992-01-01","value":-8.12581},{"date":"1993-01-01","value":6.33843},{"date":"1994-01-01","value":-4.27245},{"date":"1995-01-01","value":1.97073},{"date":"1996-01-01","value":-5.96021},{"date":"1997-01-01","value":-14.8324},{"date":"1998-01-01","value":3.36829},{"date":"1999-01-01","value":-4.1132},{"date":"2000-01-01","value":-3.01871},{"date":"2001-01-01","value":1.77267},{"date":"2002-01-01","value":0.271698},{"date":"2003-01-01","value":2.92658},{"date":"2004-01-01","value":-1.75116},{"date":"2005-01-01","value":5.36506},{"date":"2006-01-01","value":0.685139},{"date":"2007-01-01","value":-1.14013},{"date":"2008-01-01","value":-1.0184},{"date":"2009-01-01","value":-5.04147},{"date":"2010-01-01","value":-4.93323},{"date":"2011-01-01","value":-2.15897},{"date":"2012-01-01","value":1.84024},{"date":"2013-01-01","value":-3.35817},{"date":"2014-01-01","value":3.4968},{"date":"2015-01-01","value":5.58954},{"date":"2016-01-01","value":0.908966},{"date":"2017-01-01","value":2.7071},{"date":"2018-01-01","value":-0.261829},{"date":"2019-01-01","value":2.76165},{"date":"2020-01-01","value":-6.02967},{"date":"2021-01-01","value":2.69581},{"date":"2022-01-01","value":3.86199},{"date":"2023-01-01","value":-0.525444},{"date":"2024-01-01","value":2.82019},{"date":"2025-01-01","value":0.166721}],"summary":{"latest_period":"2025-01-01","latest_value":0.166721,"max":16.9407,"mean":0.311522,"min":-39.5003,"of":79,"rank":40,"trend":"volatile"}}