{"entity":{"iso2":"TO","iso3":"TON","name":"Tonga","slug":"tonga"},"indicator":{"licence":"CC BY 4.0 (World Bank Open Data)","slug":"barro-lee-average-years-of-primary-schooling-age-70-74-total","source":"Robert J. Barro and Jong-Wha Lee: http://www.barrolee.com/","source_url":"https://data.worldbank.org/indicator/BAR.PRM.SCHL.7074","title":"Barro-Lee: Average years of primary schooling, age 70-74, total","unit":null},"observations":[{"date":"1960-01-01","value":3.25},{"date":"1965-01-01","value":3.34},{"date":"1970-01-01","value":4.59},{"date":"1975-01-01","value":4.64},{"date":"1980-01-01","value":4.69},{"date":"1985-01-01","value":4.74},{"date":"1990-01-01","value":5.24},{"date":"1995-01-01","value":5.14},{"date":"2000-01-01","value":5.09},{"date":"2005-01-01","value":5.19},{"date":"2010-01-01","value":5.63}],"summary":{"latest_period":"2010-01-01","latest_value":5.63,"max":5.63,"mean":4.68545,"min":3.25,"of":144,"rank":24,"trend":"rising"}}