{"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-35-39-total","source":"Robert J. Barro and Jong-Wha Lee: http://www.barrolee.com/","source_url":"https://data.worldbank.org/indicator/BAR.PRM.SCHL.3539","title":"Barro-Lee: Average years of primary schooling, age 35-39, total","unit":null},"observations":[{"date":"1960-01-01","value":0.25},{"date":"1965-01-01","value":0.25},{"date":"1970-01-01","value":0.25},{"date":"1975-01-01","value":0.25},{"date":"1980-01-01","value":0.4},{"date":"1985-01-01","value":0.5},{"date":"1990-01-01","value":0.74},{"date":"1995-01-01","value":1.04},{"date":"2000-01-01","value":1.05},{"date":"2005-01-01","value":1.42},{"date":"2010-01-01","value":2.26}],"summary":{"latest_period":"2010-01-01","latest_value":2.26,"max":2.26,"mean":0.764545,"min":0.25,"of":144,"rank":137,"trend":"volatile"}}