{"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-60-64-total","source":"Robert J. Barro and Jong-Wha Lee: http://www.barrolee.com/","source_url":"https://data.worldbank.org/indicator/BAR.PRM.SCHL.6064","title":"Barro-Lee: Average years of primary schooling, age 60-64, total","unit":null},"observations":[{"date":"1960-01-01","value":3.51},{"date":"1965-01-01","value":3.74},{"date":"1970-01-01","value":4.7},{"date":"1975-01-01","value":4.75},{"date":"1980-01-01","value":4.79},{"date":"1985-01-01","value":4.79},{"date":"1990-01-01","value":5.04},{"date":"1995-01-01","value":5.41},{"date":"2000-01-01","value":5.4},{"date":"2005-01-01","value":5.43},{"date":"2010-01-01","value":5.8}],"summary":{"latest_period":"2010-01-01","latest_value":5.8,"max":5.8,"mean":4.85091,"min":3.51,"of":144,"rank":23,"trend":"rising"}}