{"entity":{"iso2":"ZT","iso3":"IBT","name":"IDA & IBRD total","slug":"ida-and-ibrd-total"},"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":"1973-01-01","value":17.6303},{"date":"1974-01-01","value":17.9715},{"date":"1975-01-01","value":18.09},{"date":"1976-01-01","value":18.8873},{"date":"1977-01-01","value":20.1139},{"date":"1978-01-01","value":19.2347},{"date":"1979-01-01","value":19.2731},{"date":"1980-01-01","value":19.6558},{"date":"1981-01-01","value":20.241},{"date":"1982-01-01","value":19.8453},{"date":"1983-01-01","value":19.7436},{"date":"1984-01-01","value":19.5881},{"date":"1985-01-01","value":19.4361},{"date":"1986-01-01","value":19.4718},{"date":"1987-01-01","value":19.5171},{"date":"1988-01-01","value":19.6511},{"date":"1989-01-01","value":19.7152},{"date":"1990-01-01","value":19.2351},{"date":"1991-01-01","value":19.0139},{"date":"1992-01-01","value":19.409},{"date":"1993-01-01","value":20.0247},{"date":"1994-01-01","value":20.107},{"date":"1995-01-01","value":20.2189},{"date":"1996-01-01","value":20.2936},{"date":"1997-01-01","value":20.061},{"date":"1998-01-01","value":20.2059},{"date":"1999-01-01","value":19.1256},{"date":"2000-01-01","value":18.0356},{"date":"2001-01-01","value":18.3857},{"date":"2002-01-01","value":18.0067},{"date":"2003-01-01","value":17.5493},{"date":"2004-01-01","value":17.4428},{"date":"2005-01-01","value":17.0404},{"date":"2006-01-01","value":17.8719},{"date":"2007-01-01","value":17.8557},{"date":"2008-01-01","value":17.9149},{"date":"2009-01-01","value":18.3589},{"date":"2010-01-01","value":18.6167},{"date":"2011-01-01","value":18.804},{"date":"2012-01-01","value":19.1794},{"date":"2013-01-01","value":19.6595},{"date":"2014-01-01","value":18.9473},{"date":"2015-01-01","value":18.7975},{"date":"2016-01-01","value":18.7959},{"date":"2017-01-01","value":18.6041},{"date":"2018-01-01","value":18.2397}],"summary":{"latest_period":"2018-01-01","latest_value":18.2397,"max":20.2936,"mean":18.9971,"min":17.0404,"of":43,"rank":22,"trend":"flat"}}