{"entity":{"iso2":"ZA","iso3":"ZAF","name":"South Africa","slug":"south-africa"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"polio-number-unvaccinated","source":"WHO & UNICEF (2025); UN, World Population Prospects (2024) \u2013 processed by Our World in Data","source_url":"https://ourworldindata.org/grapher/polio-number-unvaccinated","title":"Number of one-year-olds who are not vaccinated against polio","unit":"one-year-olds"},"observations":[{"date":"1983-01-01","value":206719.0},{"date":"1984-01-01","value":256230.0},{"date":"1985-01-01","value":251083.0},{"date":"1986-01-01","value":337474.0},{"date":"1987-01-01","value":288999.0},{"date":"1988-01-01","value":349242.0},{"date":"1989-01-01","value":313963.0},{"date":"1990-01-01","value":276110.0},{"date":"1991-01-01","value":202293.0},{"date":"1992-01-01","value":233600.0},{"date":"1993-01-01","value":208929.0},{"date":"1994-01-01","value":294644.0},{"date":"1995-01-01","value":301781.0},{"date":"1996-01-01","value":291486.0},{"date":"1997-01-01","value":305450.0},{"date":"1998-01-01","value":295409.0},{"date":"1999-01-01","value":296284.0},{"date":"2000-01-01","value":291611.0},{"date":"2001-01-01","value":284581.0},{"date":"2002-01-01","value":287703.0},{"date":"2003-01-01","value":285540.0},{"date":"2004-01-01","value":259975.0},{"date":"2005-01-01","value":250264.0},{"date":"2006-01-01","value":219045.0},{"date":"2007-01-01","value":226594.0},{"date":"2008-01-01","value":253327.0},{"date":"2009-01-01","value":286590.0},{"date":"2010-01-01","value":324169.0},{"date":"2011-01-01","value":326265.0},{"date":"2012-01-01","value":347340.0},{"date":"2013-01-01","value":236937.0},{"date":"2014-01-01","value":171191.0},{"date":"2015-01-01","value":174659.0},{"date":"2016-01-01","value":175290.0},{"date":"2017-01-01","value":180122.0},{"date":"2018-01-01","value":198345.0},{"date":"2019-01-01","value":167598.0},{"date":"2020-01-01","value":183124.0},{"date":"2021-01-01","value":164790.0},{"date":"2022-01-01","value":182448.0},{"date":"2023-01-01","value":251724.0}],"summary":{"latest_period":"2023-01-01","latest_value":251724.0,"max":349242.0,"mean":254608.0,"min":164790.0,"of":194,"rank":21,"trend":"falling"}}