{"entity":{"iso2":"VN","iso3":"VNM","name":"Viet Nam","slug":"viet-nam"},"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":"2011-01-01","value":0.0},{"date":"2012-01-01","value":0.0},{"date":"2013-01-01","value":0.0},{"date":"2014-01-01","value":13.1106},{"date":"2015-01-01","value":0.0},{"date":"2016-01-01","value":-20.6778},{"date":"2017-01-01","value":51.0775},{"date":"2018-01-01","value":175.275},{"date":"2019-01-01","value":21800.0},{"date":"2020-01-01","value":132.504},{"date":"2021-01-01","value":145.634},{"date":"2022-01-01","value":1.52144},{"date":"2023-01-01","value":11.3186},{"date":"2024-01-01","value":5.82414},{"date":"2025-01-01","value":2.85755}],"summary":{"latest_period":"2025-01-01","latest_value":2.85755,"max":21800.0,"mean":1487.9,"min":-20.6778,"of":76,"rank":68,"trend":"volatile"}}