{"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-45-49-total","source":"Robert J. Barro and Jong-Wha Lee: http://www.barrolee.com/","source_url":"https://data.worldbank.org/indicator/BAR.PRM.SCHL.4549","title":"Barro-Lee: Average years of primary schooling, age 45-49, total","unit":null},"observations":[{"date":"1960-01-01","value":1.07},{"date":"1965-01-01","value":1.07},{"date":"1970-01-01","value":1.04},{"date":"1975-01-01","value":1.82},{"date":"1980-01-01","value":2.09},{"date":"1985-01-01","value":2.57},{"date":"1990-01-01","value":2.99},{"date":"1995-01-01","value":4.04},{"date":"2000-01-01","value":4.05},{"date":"2005-01-01","value":4.97},{"date":"2010-01-01","value":5.05}],"summary":{"latest_period":"2010-01-01","latest_value":5.05,"max":5.05,"mean":2.79636,"min":1.04,"of":144,"rank":64,"trend":"volatile"}}