{"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-1","source":"OECD Programme for International Student Assessment (PISA)","source_url":"https://data.worldbank.org/indicator/LO.PISA.MAT.1","title":"PISA: 15-year-olds by mathematics proficiency level (%). Level 1","unit":null},"observations":[{"date":"2003-01-01","value":15.2447},{"date":"2006-01-01","value":14.1743},{"date":"2009-01-01","value":14.3628},{"date":"2012-01-01","value":11.1037},{"date":"2015-01-01","value":12.7407},{"date":"2018-01-01","value":10.5097}],"summary":{"latest_period":"2018-01-01","latest_value":10.5097,"max":15.2447,"mean":13.0226,"min":10.5097,"of":53,"rank":48,"trend":"falling"}}