{"entity":{"iso2":"BW","iso3":"BWA","name":"Botswana","slug":"botswana"},"indicator":{"licence":"CC BY 4.0 (World Bank Open Data)","slug":"barro-lee-average-years-of-primary-schooling-age-40-44-total","source":"Robert J. Barro and Jong-Wha Lee: http://www.barrolee.com/","source_url":"https://data.worldbank.org/indicator/BAR.PRM.SCHL.4044","title":"Barro-Lee: Average years of primary schooling, age 40-44, total","unit":null},"observations":[{"date":"1960-01-01","value":1.07},{"date":"1965-01-01","value":1.07},{"date":"1970-01-01","value":1.31},{"date":"1975-01-01","value":1.84},{"date":"1980-01-01","value":2.09},{"date":"1985-01-01","value":2.59},{"date":"1990-01-01","value":4.05},{"date":"1995-01-01","value":4.05},{"date":"2000-01-01","value":4.97},{"date":"2005-01-01","value":5.06},{"date":"2010-01-01","value":6.01}],"summary":{"latest_period":"2010-01-01","latest_value":6.01,"max":6.01,"mean":3.10091,"min":1.07,"of":144,"rank":27,"trend":"volatile"}}