{"entity":{"iso2":null,"iso3":null,"name":"USSR","slug":"ussr"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"annual-percentage-change-coal","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-percentage-change-coal","title":"Annual percentage change in primary energy from coal","unit":"%"},"observations":[{"date":"1966-01-01","value":3.64336},{"date":"1967-01-01","value":1.54805},{"date":"1968-01-01","value":-0.872073},{"date":"1969-01-01","value":1.90161},{"date":"1970-01-01","value":-1.2836},{"date":"1971-01-01","value":2.02214},{"date":"1972-01-01","value":2.67881},{"date":"1973-01-01","value":1.18518},{"date":"1974-01-01","value":0.490927},{"date":"1975-01-01","value":2.84644},{"date":"1976-01-01","value":-0.108269},{"date":"1977-01-01","value":1.79628},{"date":"1978-01-01","value":-0.605173},{"date":"1979-01-01","value":0.72382},{"date":"1980-01-01","value":-3.04405},{"date":"1981-01-01","value":-0.634481},{"date":"1982-01-01","value":1.53165},{"date":"1983-01-01","value":0.256524},{"date":"1984-01-01","value":-0.943817}],"summary":{"latest_period":"1984-01-01","latest_value":-0.943817,"max":3.64336,"mean":0.691229,"min":-3.04405,"of":3,"rank":3,"trend":"volatile"}}