{"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-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":15.5094},{"date":"2006-01-01","value":18.2105},{"date":"2009-01-01","value":15.2829},{"date":"2012-01-01","value":17.8899},{"date":"2015-01-01","value":18.7947},{"date":"2018-01-01","value":16.9387}],"summary":{"latest_period":"2018-01-01","latest_value":16.9387,"max":18.7947,"mean":17.1044,"min":15.2829,"of":53,"rank":19,"trend":"rising"}}