{"entity":{"iso2":"DE","iso3":"DEU","name":"Germany","slug":"germany"},"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":20.6129},{"date":"2006-01-01","value":19.4474},{"date":"2009-01-01","value":21.6987},{"date":"2012-01-01","value":21.6662},{"date":"2015-01-01","value":21.2028},{"date":"2018-01-01","value":20.8162}],"summary":{"latest_period":"2018-01-01","latest_value":20.8162,"max":21.6987,"mean":20.9074,"min":19.4474,"of":53,"rank":17,"trend":"flat"}}