{"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-secondary-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.SEC.SCHL.3539","title":"Barro-Lee: Average years of secondary schooling, age 35-39, total","unit":null},"observations":[{"date":"1960-01-01","value":0.09},{"date":"1965-01-01","value":0.09},{"date":"1970-01-01","value":0.12},{"date":"1975-01-01","value":0.19},{"date":"1980-01-01","value":0.18},{"date":"1985-01-01","value":0.88},{"date":"1990-01-01","value":1.75},{"date":"1995-01-01","value":2.5},{"date":"2000-01-01","value":2.5},{"date":"2005-01-01","value":3.23},{"date":"2010-01-01","value":3.54}],"summary":{"latest_period":"2010-01-01","latest_value":3.54,"max":3.54,"mean":1.37,"min":0.09,"of":144,"rank":63,"trend":"volatile"}}