{"entity":{"iso2":"UK","iso3":"GBR","name":"United Kingdom of Great Britain and Northern Ireland","slug":"united-kingdom"},"indicator":{"licence":"Derived by Statizoid from the sources named on the page","slug":"pertussis-number-of-reported-cases-annual-growth-rate","source":"Statizoid (derived)","source_url":null,"title":"Pertussis - number of reported cases, annual growth rate","unit":"% change on previous year"},"observations":[{"date":"1975-01-01","value":-45.5431},{"date":"1976-01-01","value":-55.8415},{"date":"1977-01-01","value":326.434},{"date":"1978-01-01","value":276.47},{"date":"1979-01-01","value":-52.9138},{"date":"1980-01-01","value":-30.9518},{"date":"1981-01-01","value":-6.38196},{"date":"1982-01-01","value":230.497},{"date":"1983-01-01","value":-69.5621},{"date":"1984-01-01","value":-70.2673},{"date":"1985-01-01","value":277.691},{"date":"1986-01-01","value":64.7377},{"date":"1987-01-01","value":-57.9584},{"date":"1988-01-01","value":-67.4052},{"date":"1989-01-01","value":124.831},{"date":"1990-01-01","value":34.9451},{"date":"1991-01-01","value":-62.168},{"date":"1992-01-01","value":-56.2241},{"date":"1993-01-01","value":71.5636},{"date":"1994-01-01","value":2.52226},{"date":"1995-01-01","value":-50.4031},{"date":"1996-01-01","value":13.5473},{"date":"1997-01-01","value":34.6916},{"date":"1998-01-01","value":-100.0},{"date":"2001-01-01","value":21.1316},{"date":"2002-01-01","value":0.476644},{"date":"2003-01-01","value":-50.5693},{"date":"2004-01-01","value":-67.5624},{"date":"2005-01-01","value":111.834},{"date":"2006-01-01","value":33.5196},{"date":"2007-01-01","value":143.305},{"date":"2008-01-01","value":-11.6079},{"date":"2009-01-01","value":-17.7043},{"date":"2010-01-01","value":-38.7707},{"date":"2011-01-01","value":139.961},{"date":"2012-01-01","value":863.797},{"date":"2013-01-01","value":-49.1653},{"date":"2014-01-01","value":-33.5632},{"date":"2015-01-01","value":28.695},{"date":"2016-01-01","value":36.0668},{"date":"2017-01-01","value":-28.0593},{"date":"2018-01-01","value":-32.8428},{"date":"2019-01-01","value":34.7648},{"date":"2020-01-01","value":-73.4229},{"date":"2021-01-01","value":-95.5954},{"date":"2022-01-01","value":46.2963},{"date":"2025-01-01","value":-96.731}],"summary":{"latest_period":"2025-01-01","latest_value":-96.731,"max":863.797,"mean":33.9695,"min":-100.0,"of":191,"rank":111,"trend":"volatile"}}