{"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-15-total","source":"Robert J. Barro and Jong-Wha Lee: http://www.barrolee.com/","source_url":"https://data.worldbank.org/indicator/BAR.PRM.SCHL.15UP","title":"Barro-Lee: Average years of primary schooling, age 15+, total","unit":null},"observations":[{"date":"1960-01-01","value":4.13},{"date":"1965-01-01","value":4.32},{"date":"1970-01-01","value":4.87},{"date":"1975-01-01","value":5.12},{"date":"1980-01-01","value":5.27},{"date":"1985-01-01","value":5.3},{"date":"1990-01-01","value":5.59},{"date":"1995-01-01","value":5.78},{"date":"2000-01-01","value":5.77},{"date":"2005-01-01","value":5.74},{"date":"2010-01-01","value":5.88}],"summary":{"latest_period":"2010-01-01","latest_value":5.88,"max":5.88,"mean":5.25182,"min":4.13,"of":144,"rank":29,"trend":"rising"}}