{"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-30-34-total","source":"Robert J. Barro and Jong-Wha Lee: http://www.barrolee.com/","source_url":"https://data.worldbank.org/indicator/BAR.PRM.SCHL.3034","title":"Barro-Lee: Average years of primary schooling, age 30-34, total","unit":null},"observations":[{"date":"1960-01-01","value":4.47},{"date":"1965-01-01","value":4.5},{"date":"1970-01-01","value":4.9},{"date":"1975-01-01","value":4.9},{"date":"1980-01-01","value":4.97},{"date":"1985-01-01","value":5.5},{"date":"1990-01-01","value":5.66},{"date":"1995-01-01","value":5.88},{"date":"2000-01-01","value":5.86},{"date":"2005-01-01","value":5.87},{"date":"2010-01-01","value":5.94}],"summary":{"latest_period":"2010-01-01","latest_value":5.94,"max":5.94,"mean":5.31364,"min":4.47,"of":144,"rank":34,"trend":"rising"}}