{"entity":{"iso2":"PL","iso3":"POL","name":"Poland","slug":"poland"},"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":25.3429},{"date":"2006-01-01","value":26.2353},{"date":"2009-01-01","value":26.1383},{"date":"2012-01-01","value":25.4619},{"date":"2015-01-01","value":27.0978},{"date":"2018-01-01","value":26.544}],"summary":{"latest_period":"2018-01-01","latest_value":26.544,"max":27.0978,"mean":26.1367,"min":25.3429,"of":53,"rank":8,"trend":"flat"}}