{"entity":{"iso2":"EL","iso3":"GRC","name":"Greece","slug":"greece"},"indicator":{"licence":"CC BY 4.0 (World Bank Open Data)","slug":"pisa-15-year-olds-by-mathematics-proficiency-level-percent-level-4","source":"OECD Programme for International Student Assessment (PISA)","source_url":"https://data.worldbank.org/indicator/LO.PISA.MAT.4","title":"PISA: 15-year-olds by mathematics proficiency level (%). Level 4","unit":null},"observations":[{"date":"2003-01-01","value":10.5941},{"date":"2006-01-01","value":12.6123},{"date":"2009-01-01","value":13.6113},{"date":"2012-01-01","value":11.1778},{"date":"2015-01-01","value":12.2673},{"date":"2018-01-01","value":11.097}],"summary":{"latest_period":"2018-01-01","latest_value":11.097,"max":13.6113,"mean":11.8933,"min":10.5941,"of":53,"rank":38,"trend":"flat"}}