{"entity":{"iso2":"US","iso3":"USA","name":"United States","slug":"united-states"},"indicator":{"licence":"CC BY 4.0 (World Bank Open Data)","slug":"pisa-15-year-olds-by-mathematics-proficiency-level-percent-level-4","source":"OECD Programme for International Student Assessment (PISA)","source_url":"https://data.worldbank.org/indicator/LO.PISA.MAT.4","title":"PISA: 15-year-olds by mathematics proficiency level (%). Level 4","unit":null},"observations":[{"date":"2003-01-01","value":16.5558},{"date":"2006-01-01","value":15.0851},{"date":"2009-01-01","value":17.0626},{"date":"2012-01-01","value":15.7872},{"date":"2015-01-01","value":14.7433},{"date":"2018-01-01","value":16.3467}],"summary":{"latest_period":"2018-01-01","latest_value":16.3467,"max":17.0626,"mean":15.9301,"min":14.7433,"of":53,"rank":34,"trend":"flat"}}