{"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-secondary-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.SEC.SCHL.7074","title":"Barro-Lee: Average years of secondary schooling, age 70-74, total","unit":null},"observations":[{"date":"1960-01-01","value":0.13},{"date":"1965-01-01","value":0.21},{"date":"1970-01-01","value":0.71},{"date":"1975-01-01","value":0.8},{"date":"1980-01-01","value":0.93},{"date":"1985-01-01","value":1.21},{"date":"1990-01-01","value":1.53},{"date":"1995-01-01","value":1.59},{"date":"2000-01-01","value":2.63},{"date":"2005-01-01","value":4.48},{"date":"2010-01-01","value":7.22}],"summary":{"latest_period":"2010-01-01","latest_value":7.22,"max":7.22,"mean":1.94909,"min":0.13,"of":144,"rank":1,"trend":"volatile"}}