{"entity":{"iso2":"TT","iso3":"TTO","name":"Trinidad and Tobago","slug":"trinidad-and-tobago"},"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":"1980-01-01","value":18184.0},{"date":"1981-01-01","value":13646.7},{"date":"1982-01-01","value":12771.9},{"date":"1983-01-01","value":12321.7},{"date":"1984-01-01","value":10804.9},{"date":"1985-01-01","value":8244.34},{"date":"1986-01-01","value":9150.95},{"date":"1987-01-01","value":6225.0},{"date":"1988-01-01","value":5118.36},{"date":"1989-01-01","value":6620.55},{"date":"1990-01-01","value":3569.8},{"date":"1991-01-01","value":4958.05},{"date":"1992-01-01","value":3228.55},{"date":"1993-01-01","value":5254.48},{"date":"1994-01-01","value":3453.3},{"date":"1995-01-01","value":2222.2},{"date":"1996-01-01","value":2137.0},{"date":"1997-01-01","value":1845.0},{"date":"1998-01-01","value":1785.42},{"date":"1999-01-01","value":1934.9},{"date":"2000-01-01","value":1912.5},{"date":"2001-01-01","value":1714.32},{"date":"2002-01-01","value":758.84},{"date":"2003-01-01","value":1697.4},{"date":"2004-01-01","value":1125.42},{"date":"2005-01-01","value":935.05},{"date":"2006-01-01","value":2062.72},{"date":"2007-01-01","value":1892.2},{"date":"2008-01-01","value":1714.77},{"date":"2009-01-01","value":1909.5},{"date":"2010-01-01","value":1720.26},{"date":"2011-01-01","value":1720.26},{"date":"2012-01-01","value":1715.13},{"date":"2013-01-01","value":1138.02},{"date":"2014-01-01","value":1128.84},{"date":"2015-01-01","value":2234.88},{"date":"2016-01-01","value":1657.35},{"date":"2017-01-01","value":1092.0},{"date":"2018-01-01","value":181.02},{"date":"2019-01-01","value":1251.6},{"date":"2020-01-01","value":1229.34},{"date":"2021-01-01","value":1035.42},{"date":"2022-01-01","value":1179.57},{"date":"2023-01-01","value":658.36}],"summary":{"latest_period":"2023-01-01","latest_value":658.36,"max":18184.0,"mean":3798.68,"min":181.02,"of":194,"rank":158,"trend":"volatile"}}