{"entity":{"iso2":"VU","iso3":"VUT","name":"Vanuatu","slug":"vanuatu"},"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":7976.64},{"date":"2016-01-01","value":4222.0},{"date":"2017-01-01","value":1284.45},{"date":"2018-01-01","value":1386.24},{"date":"2019-01-01","value":872.3},{"date":"2020-01-01","value":1928.3},{"date":"2021-01-01","value":3338.68},{"date":"2022-01-01","value":3433.17},{"date":"2023-01-01","value":2561.28}],"summary":{"latest_period":"2023-01-01","latest_value":2561.28,"max":7976.64,"mean":3000.34,"min":872.3,"of":194,"rank":125,"trend":"volatile"}}