{"entity":{"iso2":"BG","iso3":"BGR","name":"Bulgaria","slug":"bulgaria"},"indicator":{"licence":"CC BY 4.0 (World Bank Open Data)","slug":"pupil-teacher-ratio-preprimary","source":"Stat Bulk Data Download Service, UN Educational, Scientific and Cultural Organization (UNESCO)","source_url":"https://data.worldbank.org/indicator/SE.PRE.ENRL.TC.ZS","title":"Pupil-teacher ratio, preprimary","unit":null},"observations":[{"date":"1971-01-01","value":18.2546},{"date":"1972-01-01","value":17.7146},{"date":"1973-01-01","value":17.5487},{"date":"1974-01-01","value":17.2966},{"date":"1975-01-01","value":17.0505},{"date":"1976-01-01","value":16.2665},{"date":"1977-01-01","value":15.2463},{"date":"1978-01-01","value":15.0305},{"date":"1979-01-01","value":14.7022},{"date":"1980-01-01","value":14.7277},{"date":"1981-01-01","value":14.5125},{"date":"1982-01-01","value":14.0003},{"date":"1983-01-01","value":13.7922},{"date":"1984-01-01","value":13.3677},{"date":"1985-01-01","value":13.0781},{"date":"1986-01-01","value":12.486},{"date":"1987-01-01","value":12.1572},{"date":"1988-01-01","value":12.017},{"date":"1989-01-01","value":11.7622},{"date":"1990-01-01","value":11.2164},{"date":"1991-01-01","value":10.5567},{"date":"1992-01-01","value":9.23498},{"date":"1993-01-01","value":9.59869},{"date":"1994-01-01","value":9.6582},{"date":"1995-01-01","value":10.2365},{"date":"1996-01-01","value":10.6419},{"date":"1997-01-01","value":10.5774},{"date":"1998-01-01","value":10.6846},{"date":"1999-01-01","value":11.3243},{"date":"2000-01-01","value":11.2784},{"date":"2001-01-01","value":11.4301},{"date":"2002-01-01","value":11.4106},{"date":"2003-01-01","value":11.7667},{"date":"2004-01-01","value":11.4966},{"date":"2005-01-01","value":11.4824},{"date":"2006-01-01","value":11.4573},{"date":"2007-01-01","value":11.4477},{"date":"2008-01-01","value":11.4306},{"date":"2009-01-01","value":11.8017},{"date":"2010-01-01","value":12.0221},{"date":"2011-01-01","value":12.2988},{"date":"2012-01-01","value":12.4929},{"date":"2013-01-01","value":12.6973},{"date":"2014-01-01","value":12.8202},{"date":"2016-01-01","value":12.3045},{"date":"2017-01-01","value":12.2318}],"summary":{"latest_period":"2017-01-01","latest_value":12.2318,"max":18.2546,"mean":12.7524,"min":9.23498,"of":182,"rank":133,"trend":"falling"}}