{"entity":{"iso2":"NG","iso3":"NGA","name":"Nigeria","slug":"nigeria"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"ipv-vaccine-coverage","source":"WHO & UNICEF (2025); UN, World Population Prospects (2024) \u2013 processed by Our World in Data","source_url":"https://ourworldindata.org/grapher/ipv-vaccine-coverage","title":"Share of one-year-olds who received the inactivated polio vaccine","unit":"%"},"observations":[{"date":"2015-01-01","value":42.0},{"date":"2016-01-01","value":52.0},{"date":"2017-01-01","value":53.0},{"date":"2018-01-01","value":59.0},{"date":"2019-01-01","value":66.0},{"date":"2020-01-01","value":62.0},{"date":"2021-01-01","value":59.0},{"date":"2022-01-01","value":55.0},{"date":"2023-01-01","value":70.0},{"date":"2024-01-01","value":67.0}],"summary":{"latest_period":"2024-01-01","latest_value":67.0,"max":70.0,"mean":58.5,"min":42.0,"of":194,"rank":178,"trend":"rising"}}