{"entity":{"iso2":"SV","iso3":"SLV","name":"El Salvador","slug":"el-salvador"},"indicator":{"licence":"CC BY 4.0 (World Bank Open Data)","slug":"barro-lee-average-years-of-primary-schooling-age-50-54-total","source":"Robert J. Barro and Jong-Wha Lee: http://www.barrolee.com/","source_url":"https://data.worldbank.org/indicator/BAR.PRM.SCHL.5054","title":"Barro-Lee: Average years of primary schooling, age 50-54, total","unit":null},"observations":[{"date":"1960-01-01","value":1.46},{"date":"1965-01-01","value":1.38},{"date":"1970-01-01","value":1.51},{"date":"1975-01-01","value":1.5},{"date":"1980-01-01","value":1.76},{"date":"1985-01-01","value":2.09},{"date":"1990-01-01","value":2.6},{"date":"1995-01-01","value":2.7},{"date":"2000-01-01","value":3.15},{"date":"2005-01-01","value":3.75},{"date":"2010-01-01","value":4.47}],"summary":{"latest_period":"2010-01-01","latest_value":4.47,"max":4.47,"mean":2.39727,"min":1.38,"of":144,"rank":77,"trend":"rising"}}