{
 "code": "LK.UTIL.WDI.IS_AIR_GOOD_MT_K1.A",
 "name": "Air transport, freight (million ton-km) (World Bank WDI)",
 "unit": "Tonnes-km",
 "frequency": "Annual",
 "base_year": null,
 "producer": "World Bank",
 "publisher": "World Bank",
 "source_url": "https://data.worldbank.org/country/sri-lanka",
 "latest_vintage": "2026-10-08",
 "page": "/data/series/LK.UTIL.WDI.IS_AIR_GOOD_MT_K1.A/",
 "notice": "Compiled by Macro Lab; not an official publication of the source agency. Provided as is, without warranty of any kind. Not investment advice.",
 "licence": "Source: The World Bank. Licence: CC BY 4.0. https://creativecommons.org/licenses/by/4.0/",
 "observations": [
  {"period": "1970", "value": 1.8, "status": null},
  {"period": "1971", "value": 1.9, "status": null},
  {"period": "1972", "value": 3.5, "status": null},
  {"period": "1973", "value": 2.9, "status": null},
  {"period": "1974", "value": 2.6, "status": null},
  {"period": "1975", "value": 2.0, "status": null},
  {"period": "1976", "value": 2.4, "status": null},
  {"period": "1977", "value": 2.2, "status": null},
  {"period": "1978", "value": 0.5, "status": null},
  {"period": "1979", "value": 1.8, "status": null},
  {"period": "1980", "value": 9.7, "status": null},
  {"period": "1981", "value": 26.8, "status": null},
  {"period": "1982", "value": 39.8, "status": null},
  {"period": "1983", "value": 44.6, "status": null},
  {"period": "1984", "value": 59.6, "status": null},
  {"period": "1985", "value": 67.6, "status": null},
  {"period": "1986", "value": 54.7, "status": null},
  {"period": "1987", "value": 49.1, "status": null},
  {"period": "1988", "value": 61.7, "status": null},
  {"period": "1989", "value": 75.4, "status": null},
  {"period": "1990", "value": 93.4, "status": null},
  {"period": "1991", "value": 100.699997, "status": null},
  {"period": "1992", "value": 109.800003, "status": null},
  {"period": "1993", "value": 104.4, "status": null},
  {"period": "1994", "value": 109.9, "status": null},
  {"period": "1995", "value": 156.0, "status": null},
  {"period": "1996", "value": 158.600006, "status": null},
  {"period": "1997", "value": 173.899994, "status": null},
  {"period": "1998", "value": 156.5, "status": null},
  {"period": "1999", "value": 179.199997, "status": null},
  {"period": "2000", "value": 255.708, "status": null},
  {"period": "2001", "value": 217.567, "status": null},
  {"period": "2002", "value": 203.126, "status": null},
  {"period": "2003", "value": 238.009, "status": null},
  {"period": "2004", "value": 312.627, "status": null},
  {"period": "2005", "value": 310.362, "status": null},
  {"period": "2006", "value": 325.413, "status": null},
  {"period": "2007", "value": 343.641, "status": null},
  {"period": "2008", "value": 331.457, "status": null},
  {"period": "2009", "value": 278.998, "status": null},
  {"period": "2010", "value": 339.0, "status": null},
  {"period": "2011", "value": 364.50263, "status": null},
  {"period": "2012", "value": 405.42043, "status": null},
  {"period": "2013", "value": 385.12, "status": null},
  {"period": "2014", "value": 384.708654, "status": null},
  {"period": "2015", "value": 381.6, "status": null},
  {"period": "2016", "value": 403.075584, "status": null},
  {"period": "2017", "value": 398.473464, "status": null},
  {"period": "2018", "value": 436.198, "status": null},
  {"period": "2019", "value": 394.05, "status": null},
  {"period": "2020", "value": 226.479, "status": null},
  {"period": "2021", "value": 412.484, "status": null},
  {"period": "2022", "value": 314.752588, "status": null},
  {"period": "2023", "value": 278.498286, "status": null}
 ]
}