{"entity":{"iso2":"BG","iso3":"BGR","name":"Bulgaria","slug":"bulgaria"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"polio-number-unvaccinated","source":"Our World in Data","source_url":"https://ourworldindata.org/grapher/polio-number-unvaccinated","title":"Polio number unvaccinated","unit":null},"observations":[{"date":"1980-01-01","value":1320.85},{"date":"1981-01-01","value":1288.89},{"date":"1982-01-01","value":1235.69},{"date":"1983-01-01","value":2434.62},{"date":"1984-01-01","value":1212.1},{"date":"1985-01-01","value":1198.05},{"date":"1986-01-01","value":1211.91},{"date":"1987-01-01","value":1208.58},{"date":"1988-01-01","value":1165.24},{"date":"1989-01-01","value":1138.51},{"date":"1990-01-01","value":1100.75},{"date":"1991-01-01","value":19696.3},{"date":"1992-01-01","value":948.46},{"date":"1993-01-01","value":2647.26},{"date":"1994-01-01","value":5073.66},{"date":"1995-01-01","value":2391.99},{"date":"1996-01-01","value":3677.6},{"date":"1997-01-01","value":2792.8},{"date":"1998-01-01","value":2630.16},{"date":"1999-01-01","value":1870.23},{"date":"2000-01-01","value":3967.62},{"date":"2001-01-01","value":4081.26},{"date":"2002-01-01","value":3973.62},{"date":"2003-01-01","value":2617.52},{"date":"2004-01-01","value":3930.96},{"date":"2005-01-01","value":2014.17},{"date":"2006-01-01","value":2753.6},{"date":"2007-01-01","value":3527.65},{"date":"2008-01-01","value":2891.48},{"date":"2009-01-01","value":4426.92},{"date":"2010-01-01","value":4554.06},{"date":"2011-01-01","value":3710.6},{"date":"2012-01-01","value":3497.75},{"date":"2013-01-01","value":3389.65},{"date":"2014-01-01","value":7918.44},{"date":"2015-01-01","value":5947.02},{"date":"2016-01-01","value":5314.08},{"date":"2017-01-01","value":5226.48},{"date":"2018-01-01","value":5176.16},{"date":"2019-01-01","value":4441.85},{"date":"2020-01-01","value":5590.89},{"date":"2021-01-01","value":6666.33},{"date":"2022-01-01","value":5328.81},{"date":"2023-01-01","value":4924.64}],"summary":{"latest_period":"2023-01-01","latest_value":4924.64,"max":19696.3,"mean":3684.44,"min":948.46,"of":192,"rank":114,"trend":"volatile"}}