{"entity":{"iso2":"CN","iso3":"CHN","name":"China","slug":"china"},"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":"2017-01-01","value":177616.0},{"date":"2018-01-01","value":181447.0},{"date":"2019-01-01","value":166753.0},{"date":"2020-01-01","value":148706.0},{"date":"2021-01-01","value":131346.0},{"date":"2022-01-01","value":110763.0},{"date":"2023-01-01","value":296692.0}],"summary":{"latest_period":"2023-01-01","latest_value":296692.0,"max":296692.0,"mean":173332.0,"min":110763.0,"of":194,"rank":15,"trend":"rising"}}