{"entity":{"iso2":"RU","iso3":"RUS","name":"Russia","slug":"russian-federation"},"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":13.2058},{"date":"2006-01-01","value":14.7411},{"date":"2009-01-01","value":12.6745},{"date":"2012-01-01","value":15.699},{"date":"2015-01-01","value":19.3064},{"date":"2018-01-01","value":17.8308}],"summary":{"latest_period":"2018-01-01","latest_value":17.8308,"max":19.3064,"mean":15.5763,"min":12.6745,"of":53,"rank":29,"trend":"rising"}}