{"entity":{"iso2":"MH","iso3":"MHL","name":"Marshall Islands","slug":"marshall-islands"},"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":"1987-01-01","value":1150.39},{"date":"1988-01-01","value":1096.83},{"date":"1989-01-01","value":637.88},{"date":"1990-01-01","value":191.18},{"date":"1991-01-01","value":506.34},{"date":"1992-01-01","value":638.78},{"date":"1993-01-01","value":774.72},{"date":"1994-01-01","value":592.8},{"date":"1995-01-01","value":551.52},{"date":"1996-01-01","value":351.21},{"date":"1997-01-01","value":444.28},{"date":"1998-01-01","value":216.16},{"date":"1999-01-01","value":219.1},{"date":"2000-01-01","value":1047.04},{"date":"2001-01-01","value":748.88},{"date":"2002-01-01","value":334.2},{"date":"2003-01-01","value":320.2},{"date":"2004-01-01","value":497.92},{"date":"2005-01-01","value":185.04},{"date":"2006-01-01","value":77.2},{"date":"2007-01-01","value":138.78},{"date":"2008-01-01","value":60.6},{"date":"2009-01-01","value":14.84},{"date":"2010-01-01","value":74.85},{"date":"2011-01-01","value":183.72},{"date":"2012-01-01","value":295.2},{"date":"2013-01-01","value":281.19},{"date":"2014-01-01","value":280.6},{"date":"2015-01-01","value":169.35},{"date":"2016-01-01","value":327.98},{"date":"2017-01-01","value":212.1},{"date":"2018-01-01","value":193.2},{"date":"2019-01-01","value":205.48},{"date":"2020-01-01","value":168.12},{"date":"2021-01-01","value":139.95},{"date":"2022-01-01","value":126.28},{"date":"2023-01-01","value":134.88}],"summary":{"latest_period":"2023-01-01","latest_value":134.88,"max":1150.39,"mean":367.265,"min":14.84,"of":194,"rank":176,"trend":"volatile"}}