{"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-30-34-total","source":"Robert J. Barro and Jong-Wha Lee: http://www.barrolee.com/","source_url":"https://data.worldbank.org/indicator/BAR.SEC.SCHL.3034","title":"Barro-Lee: Average years of secondary schooling, age 30-34, total","unit":null},"observations":[{"date":"1960-01-01","value":0.48},{"date":"1965-01-01","value":0.69},{"date":"1970-01-01","value":4.89},{"date":"1975-01-01","value":4.58},{"date":"1980-01-01","value":3.55},{"date":"1985-01-01","value":1.98},{"date":"1990-01-01","value":2.15},{"date":"1995-01-01","value":2.19},{"date":"2000-01-01","value":2.22},{"date":"2005-01-01","value":5.59},{"date":"2010-01-01","value":2.59}],"summary":{"latest_period":"2010-01-01","latest_value":2.59,"max":5.59,"mean":2.81,"min":0.48,"of":144,"rank":95,"trend":"volatile"}}