{"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-3","source":"OECD Programme for International Student Assessment (PISA)","source_url":"https://data.worldbank.org/indicator/LO.PISA.MAT.3","title":"PISA: 15-year-olds by mathematics proficiency level (%). Level 3","unit":null},"observations":[{"date":"2003-01-01","value":18.8533},{"date":"2006-01-01","value":18.6528},{"date":"2009-01-01","value":19.9357},{"date":"2012-01-01","value":19.5121},{"date":"2018-01-01","value":19.2081}],"summary":{"latest_period":"2018-01-01","latest_value":19.2081,"max":19.9357,"mean":19.2324,"min":18.6528,"of":53,"rank":39,"trend":"flat"}}