{"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-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":6.80195},{"date":"2006-01-01","value":5.67004},{"date":"2009-01-01","value":6.12463},{"date":"2012-01-01","value":3.28287},{"date":"2015-01-01","value":4.45331},{"date":"2018-01-01","value":4.20998}],"summary":{"latest_period":"2018-01-01","latest_value":4.20998,"max":6.80195,"mean":5.09046,"min":3.28287,"of":53,"rank":46,"trend":"falling"}}