{"entity":{"iso2":null,"iso3":null,"name":"USSR","slug":"ussr"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"share-energy-source-sub","source":"Energy Institute - Statistical Review of World Energy (2026); Smil (2017); U.S. Energy Information Administration (2026) \u2013 with major processing by Our World in Data","source_url":"https://ourworldindata.org/grapher/share-energy-source-sub","title":"Share of primary energy use by source","unit":"%"},"observations":[{"date":"1965-01-01","value":18.0051},{"date":"1966-01-01","value":18.9131},{"date":"1967-01-01","value":19.7725},{"date":"1968-01-01","value":20.6416},{"date":"1969-01-01","value":21.1157},{"date":"1970-01-01","value":22.1171},{"date":"1971-01-01","value":23.0222},{"date":"1972-01-01","value":22.9947},{"date":"1973-01-01","value":23.7548},{"date":"1974-01-01","value":23.879},{"date":"1975-01-01","value":24.7708},{"date":"1976-01-01","value":26.2535},{"date":"1977-01-01","value":26.941},{"date":"1978-01-01","value":27.6074},{"date":"1979-01-01","value":28.513},{"date":"1980-01-01","value":28.7715},{"date":"1981-01-01","value":29.822},{"date":"1982-01-01","value":31.3312},{"date":"1983-01-01","value":32.9063},{"date":"1984-01-01","value":34.6587}],"summary":{"latest_period":"1984-01-01","latest_value":34.6587,"max":34.6587,"mean":25.2895,"min":18.0051,"of":3,"rank":2,"trend":"rising"}}