{"entity":{"iso2":"PT","iso3":"PRT","name":"Portugal","slug":"portugal"},"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":13.4388},{"date":"2006-01-01","value":14.4435},{"date":"2009-01-01","value":17.6913},{"date":"2012-01-01","value":17.6604},{"date":"2015-01-01","value":19.2159},{"date":"2018-01-01","value":19.7271}],"summary":{"latest_period":"2018-01-01","latest_value":19.7271,"max":19.7271,"mean":17.0295,"min":13.4388,"of":53,"rank":22,"trend":"rising"}}