{"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-total-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.SCHL.7074","title":"Barro-Lee: Average years of total schooling, age 70-74, total","unit":null},"observations":[{"date":"1960-01-01","value":4.41},{"date":"1965-01-01","value":4.59},{"date":"1970-01-01","value":6.23},{"date":"1975-01-01","value":6.38},{"date":"1980-01-01","value":6.53},{"date":"1985-01-01","value":6.72},{"date":"1990-01-01","value":8.1},{"date":"1995-01-01","value":7.17},{"date":"2000-01-01","value":6.94},{"date":"2005-01-01","value":7.11},{"date":"2010-01-01","value":8.95}],"summary":{"latest_period":"2010-01-01","latest_value":8.95,"max":8.95,"mean":6.64818,"min":4.41,"of":144,"rank":35,"trend":"rising"}}