{"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-level-6","source":"OECD Programme for International Student Assessment (PISA)","source_url":"https://data.worldbank.org/indicator/LO.PISA.MAT.6.FE","title":"PISA: Female 15-year-olds by mathematics proficiency level (%). Level 6","unit":null},"observations":[{"date":"2006-01-01","value":0.412246},{"date":"2009-01-01","value":0.604603},{"date":"2012-01-01","value":0.60623},{"date":"2015-01-01","value":0.725952},{"date":"2018-01-01","value":0.614082}],"summary":{"latest_period":"2018-01-01","latest_value":0.614082,"max":0.725952,"mean":0.592623,"min":0.412246,"of":53,"rank":38,"trend":"rising"}}