{"entity":{"iso2":"NG","iso3":"NGA","name":"Nigeria","slug":"nigeria"},"indicator":{"licence":"CC BY 4.0 (World Bank Open Data)","slug":"population-age-4-total","source":"UNESCO Institute for Statistics","source_url":"https://data.worldbank.org/indicator/SP.POP.AG04.TO.UN","title":"Population, age 4, total","unit":null},"observations":[{"date":"1990-01-01","value":3246560.0},{"date":"1991-01-01","value":3335500.0},{"date":"1992-01-01","value":3418550.0},{"date":"1993-01-01","value":3498130.0},{"date":"1994-01-01","value":3577860.0},{"date":"1995-01-01","value":3660260.0},{"date":"1996-01-01","value":3746250.0},{"date":"1997-01-01","value":3834720.0},{"date":"1998-01-01","value":3923880.0},{"date":"1999-01-01","value":4011020.0},{"date":"2000-01-01","value":4094280.0},{"date":"2001-01-01","value":4172660.0},{"date":"2002-01-01","value":4246940.0},{"date":"2003-01-01","value":4319150.0},{"date":"2004-01-01","value":4392240.0},{"date":"2005-01-01","value":4468090.0},{"date":"2006-01-01","value":4547560.0},{"date":"2007-01-01","value":4629320.0},{"date":"2008-01-01","value":4710450.0},{"date":"2009-01-01","value":4786840.0},{"date":"2010-01-01","value":4855560.0},{"date":"2011-01-01","value":4915450.0},{"date":"2012-01-01","value":4967360.0},{"date":"2013-01-01","value":5012770.0},{"date":"2015-01-01","value":5092920.0}],"summary":{"latest_period":"2015-01-01","latest_value":5092920.0,"max":5092920.0,"mean":4218570.0,"min":3246560.0,"of":191,"rank":3,"trend":"rising"}}