{"entity":{"iso2":"BG","iso3":"BGR","name":"Bulgaria","slug":"bulgaria"},"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":2.7},{"date":"1965-01-01","value":3.88},{"date":"1970-01-01","value":2.79},{"date":"1975-01-01","value":3.39},{"date":"1980-01-01","value":3.65},{"date":"1985-01-01","value":4.34},{"date":"1990-01-01","value":4.64},{"date":"1995-01-01","value":4.78},{"date":"2000-01-01","value":6.4},{"date":"2005-01-01","value":8.51},{"date":"2010-01-01","value":11.59}],"summary":{"latest_period":"2010-01-01","latest_value":11.59,"max":11.59,"mean":5.15182,"min":2.7,"of":144,"rank":8,"trend":"volatile"}}