{"entity":{"iso2":"PL","iso3":"POL","name":"Poland","slug":"poland"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"literate-and-illiterate-world-population","source":"UNESCO (1957) and other sources \u2013 with major processing by Our World in Data","source_url":"https://ourworldindata.org/grapher/literate-and-illiterate-world-population","title":"Literate and illiterate world population","unit":"%"},"observations":[{"date":"1475-01-01","value":100.0},{"date":"1550-01-01","value":100.0},{"date":"1650-01-01","value":97.0},{"date":"1750-01-01","value":95.0},{"date":"1950-01-01","value":7.5},{"date":"1978-01-01","value":1.26}],"summary":{"latest_period":"1978-01-01","latest_value":1.26,"max":100.0,"mean":66.7933,"min":1.26,"of":128,"rank":113,"trend":"volatile"}}