{"entity":{"iso2":"BG","iso3":"BGR","name":"Bulgaria","slug":"bulgaria"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"academic-performance","source":"OECD (2023) \u2013 with minor processing by Our World in Data","source_url":"https://ourworldindata.org/grapher/academic-performance","title":"Average performance of 15-year-old students in mathematics","unit":"score"},"observations":[{"date":"2006-01-01","value":413.449},{"date":"2009-01-01","value":428.066},{"date":"2012-01-01","value":438.738},{"date":"2015-01-01","value":441.19},{"date":"2018-01-01","value":436.041},{"date":"2022-01-01","value":417.304}],"summary":{"latest_period":"2022-01-01","latest_value":417.304,"max":441.19,"mean":429.131,"min":413.449,"of":57,"rank":43,"trend":"flat"}}