{"entity":{"iso2":"TO","iso3":"TON","name":"Tonga","slug":"tonga"},"indicator":{"licence":"CC BY 4.0 (World Bank Open Data)","slug":"barro-lee-percentage-of-population-age-75-with-primary-schooling-completed-primary","source":"Robert J. Barro and Jong-Wha Lee: http://www.barrolee.com/","source_url":"https://data.worldbank.org/indicator/BAR.PRM.CMPT.75UP.ZS","title":"Barro-Lee: Percentage of population age 75+ with primary schooling. Completed Primary","unit":null},"observations":[{"date":"1960-01-01","value":11.67},{"date":"1965-01-01","value":12.06},{"date":"1970-01-01","value":26.35},{"date":"1975-01-01","value":25.38},{"date":"1980-01-01","value":24.11},{"date":"1985-01-01","value":23.12},{"date":"1990-01-01","value":15.23},{"date":"1995-01-01","value":4.66},{"date":"2000-01-01","value":24.08},{"date":"2005-01-01","value":36.2},{"date":"2010-01-01","value":28.73}],"summary":{"latest_period":"2010-01-01","latest_value":28.73,"max":36.2,"mean":21.0536,"min":4.66,"of":144,"rank":24,"trend":"rising"}}