{"entity":{"iso2":"GM","iso3":"GMB","name":"Gambia","slug":"gambia-the"},"indicator":{"licence":"CC BY 4.0 (World Bank Open Data)","slug":"barro-lee-average-years-of-primary-schooling-age-25-29-total","source":"Robert J. Barro and Jong-Wha Lee: http://www.barrolee.com/","source_url":"https://data.worldbank.org/indicator/BAR.PRM.SCHL.2529","title":"Barro-Lee: Average years of primary schooling, age 25-29, total","unit":null},"observations":[{"date":"1960-01-01","value":0.25},{"date":"1965-01-01","value":0.25},{"date":"1970-01-01","value":0.34},{"date":"1975-01-01","value":0.34},{"date":"1980-01-01","value":0.72},{"date":"1985-01-01","value":1.04},{"date":"1990-01-01","value":1.09},{"date":"1995-01-01","value":1.42},{"date":"2000-01-01","value":2.26},{"date":"2005-01-01","value":2.16},{"date":"2010-01-01","value":2.45}],"summary":{"latest_period":"2010-01-01","latest_value":2.45,"max":2.45,"mean":1.12,"min":0.25,"of":144,"rank":139,"trend":"volatile"}}