{"id":"worldbank.air-transport-freight.sle.annual","dataset_id":"worldbank-air-transport-freight","indicator":"air-transport-freight","geography":"SLE","frequency":"annual","unit":"million ton-km","start_period":"1975","end_period":"2012","org":"World Bank","original_indicator":"IS.AIR.GOOD.MT.K1","url":"https://api.worldbank.org/v2","retrieved_at":"2026-11-07T07:57:03+00:00","version":"1","geography_name":"Sierra Leone","region":"Sub-Saharan Africa ","observations":[{"period":"1975","value":0.6999999881,"flags":""},{"period":"1976","value":0.8000000119,"flags":""},{"period":"1977","value":0.8999999762,"flags":""},{"period":"1978","value":0.8999999762,"flags":""},{"period":"1979","value":0.8999999762,"flags":""},{"period":"1980","value":0.8999999762,"flags":""},{"period":"1981","value":0.8999999762,"flags":""},{"period":"1982","value":1.1000000238,"flags":""},{"period":"1983","value":1.2999999523,"flags":""},{"period":"1984","value":1.2999999523,"flags":""},{"period":"1985","value":1.2999999523,"flags":""},{"period":"1986","value":1.5,"flags":""},{"period":"1987","value":2.5,"flags":""},{"period":"1988","value":2.0,"flags":""},{"period":"1989","value":2.0,"flags":""},{"period":"1990","value":2.2000000477,"flags":""},{"period":"1992","value":0.1000000015,"flags":""},{"period":"1993","value":0.1000000015,"flags":""},{"period":"1994","value":0.200000003,"flags":""},{"period":"1995","value":0.200000003,"flags":""},{"period":"1996","value":0.3000000119,"flags":""},{"period":"1998","value":0.400000006,"flags":""},{"period":"2000","value":9.0,"flags":""},{"period":"2001","value":6.0,"flags":""},{"period":"2002","value":6.06,"flags":""},{"period":"2003","value":6.666,"flags":""},{"period":"2004","value":7.533,"flags":""},{"period":"2005","value":8.06,"flags":""},{"period":"2006","value":9.591,"flags":""},{"period":"2007","value":8.632,"flags":""},{"period":"2008","value":8.34,"flags":""},{"period":"2009","value":7.581,"flags":""},{"period":"2010","value":0.0,"flags":""},{"period":"2011","value":0.0,"flags":""},{"period":"2012","value":0.0,"flags":""}],"indicator_name":"Air transport, freight","topic":"Infrastructure","source":"worldbank","provenance":{"organization":"World Bank","original_indicator":"IS.AIR.GOOD.MT.K1","url":"https://api.worldbank.org/v2","retrieved_at":"2026-11-07T07:57:03+00:00","version":"1","license":"see source"}}