{"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-secondary-schooling-age-35-39-total","source":"Robert J. Barro and Jong-Wha Lee: http://www.barrolee.com/","source_url":"https://data.worldbank.org/indicator/BAR.SEC.SCHL.3539","title":"Barro-Lee: Average years of secondary schooling, age 35-39, total","unit":null},"observations":[{"date":"1960-01-01","value":0.2},{"date":"1965-01-01","value":0.26},{"date":"1970-01-01","value":0.32},{"date":"1975-01-01","value":0.48},{"date":"1980-01-01","value":0.5},{"date":"1985-01-01","value":0.73},{"date":"1990-01-01","value":0.77},{"date":"1995-01-01","value":1.12},{"date":"2000-01-01","value":1.56},{"date":"2005-01-01","value":2.22},{"date":"2010-01-01","value":1.16}],"summary":{"latest_period":"2010-01-01","latest_value":1.16,"max":2.22,"mean":0.847273,"min":0.2,"of":144,"rank":122,"trend":"volatile"}}