{"entity":{"iso2":"CL","iso3":"CHL","name":"Chile","slug":"chile"},"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":"2016-01-01","value":2394.1},{"date":"2017-01-01","value":4735.84},{"date":"2018-01-01","value":4589.06},{"date":"2019-01-01","value":2247.74},{"date":"2020-01-01","value":4380.02},{"date":"2021-01-01","value":2039.88},{"date":"2022-01-01","value":1866.9},{"date":"2023-01-01","value":1837.76}],"summary":{"latest_period":"2023-01-01","latest_value":1837.76,"max":4735.84,"mean":3011.41,"min":1837.76,"of":194,"rank":131,"trend":"falling"}}