{"entity":{"iso2":"BG","iso3":"BGR","name":"Bulgaria","slug":"bulgaria"},"indicator":{"licence":"CC BY 4.0 (World Bank Open Data)","slug":"pisa-male-15-year-olds-by-mathematics-proficiency-level-percent-level-2","source":"OECD Programme for International Student Assessment (PISA)","source_url":"https://data.worldbank.org/indicator/LO.PISA.MAT.2.MA","title":"PISA: Male 15-year-olds by mathematics proficiency level (%). Level 2","unit":null},"observations":[{"date":"2006-01-01","value":20.2618},{"date":"2009-01-01","value":22.571},{"date":"2012-01-01","value":22.7452},{"date":"2015-01-01","value":22.4485},{"date":"2018-01-01","value":23.0349}],"summary":{"latest_period":"2018-01-01","latest_value":23.0349,"max":23.0349,"mean":22.2123,"min":20.2618,"of":53,"rank":15,"trend":"rising"}}