{"entity":{"iso2":"RS","iso3":"SRB","name":"Serbia","slug":"serbia"},"indicator":{"licence":"CC BY 4.0 (World Bank Open Data)","slug":"pisa-15-year-olds-by-mathematics-proficiency-level-percent-below-level-1","source":"OECD Programme for International Student Assessment (PISA)","source_url":"https://data.worldbank.org/indicator/LO.PISA.MAT.0","title":"PISA: 15-year-olds by mathematics proficiency level (%). Below Level 1","unit":null},"observations":[{"date":"2003-01-01","value":17.6252},{"date":"2006-01-01","value":19.6091},{"date":"2009-01-01","value":17.6401},{"date":"2012-01-01","value":15.4991},{"date":"2018-01-01","value":18.1131}],"summary":{"latest_period":"2018-01-01","latest_value":18.1131,"max":19.6091,"mean":17.6973,"min":15.4991,"of":53,"rank":15,"trend":"falling"}}