{"entity":{"iso2":"BB","iso3":"BRB","name":"Barbados","slug":"barbados"},"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":32.6},{"date":"2017-01-01","value":356.51},{"date":"2018-01-01","value":161.3},{"date":"2019-01-01","value":192.66},{"date":"2020-01-01","value":446.88},{"date":"2021-01-01","value":539.07},{"date":"2022-01-01","value":410.15},{"date":"2023-01-01","value":283.23}],"summary":{"latest_period":"2023-01-01","latest_value":283.23,"max":539.07,"mean":302.8,"min":32.6,"of":194,"rank":165,"trend":"volatile"}}