{"entity":{"iso2":"NE","iso3":"NER","name":"Niger","slug":"niger"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"ipv1-number-unvaccinated","source":"WHO & UNICEF (2025); UN, World Population Prospects (2024) \u2013 processed by Our World in Data","source_url":"https://ourworldindata.org/grapher/ipv1-number-unvaccinated","title":"Number of one-year-olds who have not received the inactivated polio vaccine","unit":"one-year-olds"},"observations":[{"date":"2015-01-01","value":599237.0},{"date":"2016-01-01","value":218837.0},{"date":"2017-01-01","value":129222.0},{"date":"2018-01-01","value":184537.0},{"date":"2019-01-01","value":169761.0},{"date":"2020-01-01","value":172436.0},{"date":"2021-01-01","value":165991.0},{"date":"2022-01-01","value":149987.0},{"date":"2023-01-01","value":144384.0}],"summary":{"latest_period":"2023-01-01","latest_value":144384.0,"max":599237.0,"mean":214933.0,"min":129222.0,"of":194,"rank":28,"trend":"volatile"}}