{"entity":{"iso2":"BG","iso3":"BGR","name":"Bulgaria","slug":"bulgaria"},"indicator":{"licence":"CC BY 4.0 (World Bank Open Data)","slug":"pisa-female-15-year-olds-by-mathematics-proficiency-level-percent-below-level-1","source":"OECD Programme for International Student Assessment (PISA)","source_url":"https://data.worldbank.org/indicator/LO.PISA.MAT.0.FE","title":"PISA: Female 15-year-olds by mathematics proficiency level (%). Below Level 1","unit":null},"observations":[{"date":"2006-01-01","value":27.6748},{"date":"2009-01-01","value":23.3463},{"date":"2012-01-01","value":18.4526},{"date":"2015-01-01","value":19.464},{"date":"2018-01-01","value":20.7608}],"summary":{"latest_period":"2018-01-01","latest_value":20.7608,"max":27.6748,"mean":21.9397,"min":18.4526,"of":53,"rank":13,"trend":"falling"}}