{"entity":{"iso2":"SL","iso3":"SLE","name":"Sierra Leone","slug":"sierra-leone"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"median-age","source":"UN, World Population Prospects (2024) \u2013 processed by Our World in Data","source_url":"https://ourworldindata.org/grapher/median-age","title":"Median age","unit":"years"},"observations":[{"date":"1950-01-01","value":19.398},{"date":"1951-01-01","value":19.526},{"date":"1952-01-01","value":19.643},{"date":"1953-01-01","value":19.752},{"date":"1954-01-01","value":19.844},{"date":"1955-01-01","value":19.915},{"date":"1956-01-01","value":19.968},{"date":"1957-01-01","value":20.007},{"date":"1958-01-01","value":20.037},{"date":"1959-01-01","value":20.055},{"date":"1960-01-01","value":20.056},{"date":"1961-01-01","value":20.037},{"date":"1962-01-01","value":20.005},{"date":"1963-01-01","value":19.967},{"date":"1964-01-01","value":19.927},{"date":"1965-01-01","value":19.891},{"date":"1966-01-01","value":19.852},{"date":"1967-01-01","value":19.796},{"date":"1968-01-01","value":19.72},{"date":"1969-01-01","value":19.572},{"date":"1970-01-01","value":19.37},{"date":"1971-01-01","value":19.205},{"date":"1972-01-01","value":19.049},{"date":"1973-01-01","value":18.893},{"date":"1974-01-01","value":18.742},{"date":"1975-01-01","value":18.603},{"date":"1976-01-01","value":18.478},{"date":"1977-01-01","value":18.364},{"date":"1978-01-01","value":18.256},{"date":"1979-01-01","value":18.158},{"date":"1980-01-01","value":18.071},{"date":"1981-01-01","value":17.994},{"date":"1982-01-01","value":17.922},{"date":"1983-01-01","value":17.856},{"date":"1984-01-01","value":17.79},{"date":"1985-01-01","value":17.726},{"date":"1986-01-01","value":17.664},{"date":"1987-01-01","value":17.601},{"date":"1988-01-01","value":17.539},{"date":"1989-01-01","value":17.482},{"date":"1990-01-01","value":17.428},{"date":"1991-01-01","value":17.373},{"date":"1992-01-01","value":17.316},{"date":"1993-01-01","value":17.262},{"date":"1994-01-01","value":17.207},{"date":"1995-01-01","value":17.152},{"date":"1996-01-01","value":17.102},{"date":"1997-01-01","value":17.056},{"date":"1998-01-01","value":17.004},{"date":"1999-01-01","value":16.935},{"date":"2000-01-01","value":16.878},{"date":"2001-01-01","value":16.849},{"date":"2002-01-01","value":16.829},{"date":"2003-01-01","value":16.823},{"date":"2004-01-01","value":16.837},{"date":"2005-01-01","value":16.868},{"date":"2006-01-01","value":16.906},{"date":"2007-01-01","value":16.947},{"date":"2008-01-01","value":16.993},{"date":"2009-01-01","value":17.047},{"date":"2010-01-01","value":17.112},{"date":"2011-01-01","value":17.191},{"date":"2012-01-01","value":17.281},{"date":"2013-01-01","value":17.386},{"date":"2014-01-01","value":17.512},{"date":"2015-01-01","value":17.662},{"date":"2016-01-01","value":17.831},{"date":"2017-01-01","value":18.01},{"date":"2018-01-01","value":18.201},{"date":"2019-01-01","value":18.4},{"date":"2020-01-01","value":18.605},{"date":"2021-01-01","value":18.817},{"date":"2022-01-01","value":19.04},{"date":"2023-01-01","value":19.27}],"summary":{"latest_period":"2023-01-01","latest_value":19.27,"max":20.056,"mean":18.3089,"min":16.823,"of":236,"rank":200,"trend":"falling"}}