{"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-level-6","source":"OECD Programme for International Student Assessment (PISA)","source_url":"https://data.worldbank.org/indicator/LO.PISA.MAT.6","title":"PISA: 15-year-olds by mathematics proficiency level (%). Level 6","unit":null},"observations":[{"date":"2003-01-01","value":0.224315},{"date":"2006-01-01","value":0.415925},{"date":"2009-01-01","value":0.626161},{"date":"2012-01-01","value":1.05522},{"date":"2018-01-01","value":1.01654}],"summary":{"latest_period":"2018-01-01","latest_value":1.01654,"max":1.05522,"mean":0.667632,"min":0.224315,"of":53,"rank":36,"trend":"rising"}}