{"entity":{"iso2":"SL","iso3":"SLE","name":"Sierra Leone","slug":"sierra-leone"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"air-transport-freight-ton-km","source":"International Civil Aviation Organization (ICAO), via World Bank (2026) \u2013 processed by Our World in Data","source_url":"https://ourworldindata.org/grapher/air-transport-freight-ton-km","title":"Tonne-kilometers of air freight","unit":"million ton-km"},"observations":[{"date":"1975-01-01","value":700000.0},{"date":"1976-01-01","value":800000.0},{"date":"1977-01-01","value":900000.0},{"date":"1978-01-01","value":900000.0},{"date":"1979-01-01","value":900000.0},{"date":"1980-01-01","value":900000.0},{"date":"1981-01-01","value":900000.0},{"date":"1982-01-01","value":1100000.0},{"date":"1983-01-01","value":1300000.0},{"date":"1984-01-01","value":1300000.0},{"date":"1985-01-01","value":1300000.0},{"date":"1986-01-01","value":1500000.0},{"date":"1987-01-01","value":2500000.0},{"date":"1988-01-01","value":2000000.0},{"date":"1989-01-01","value":2000000.0},{"date":"1990-01-01","value":2200000.0},{"date":"1992-01-01","value":100000.0},{"date":"1993-01-01","value":100000.0},{"date":"1994-01-01","value":200000.0},{"date":"1995-01-01","value":200000.0},{"date":"1996-01-01","value":300000.0},{"date":"1998-01-01","value":400000.0},{"date":"2000-01-01","value":9000000.0},{"date":"2001-01-01","value":6000000.0},{"date":"2002-01-01","value":6060000.0},{"date":"2003-01-01","value":6666000.0},{"date":"2004-01-01","value":7533000.0},{"date":"2005-01-01","value":8060000.0},{"date":"2006-01-01","value":9591000.0},{"date":"2007-01-01","value":8632000.0},{"date":"2008-01-01","value":8340000.0},{"date":"2009-01-01","value":7581000.0},{"date":"2010-01-01","value":0.0},{"date":"2011-01-01","value":0.0},{"date":"2012-01-01","value":0.0}],"summary":{"latest_period":"2012-01-01","latest_value":0.0,"max":9591000.0,"mean":2856090.0,"min":0.0,"of":180,"rank":164,"trend":"volatile"}}