{"entity":{"iso2":"IS","iso3":"ISL","name":"Iceland","slug":"iceland"},"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":155.556},{"date":"1976-01-01","value":-34.058},{"date":"1977-01-01","value":-36.2637},{"date":"1978-01-01","value":303.448},{"date":"1979-01-01","value":141.88},{"date":"1980-01-01","value":-92.7562},{"date":"1981-01-01","value":-36.5854},{"date":"1982-01-01","value":892.308},{"date":"1983-01-01","value":107.364},{"date":"1984-01-01","value":-88.972},{"date":"1985-01-01","value":-72.8814},{"date":"1986-01-01","value":118.75},{"date":"1987-01-01","value":362.857},{"date":"1988-01-01","value":-67.284},{"date":"1989-01-01","value":-64.1509},{"date":"1990-01-01","value":-84.2105},{"date":"1992-01-01","value":-97.0803},{"date":"1993-01-01","value":0.0},{"date":"1994-01-01","value":925.0},{"date":"1995-01-01","value":-34.1463},{"date":"1996-01-01","value":270.37},{"date":"1997-01-01","value":-53.0},{"date":"2001-01-01","value":-62.5},{"date":"2004-01-01","value":-66.6667},{"date":"2005-01-01","value":500.0},{"date":"2006-01-01","value":-50.0},{"date":"2007-01-01","value":33.3333},{"date":"2008-01-01","value":-50.0},{"date":"2009-01-01","value":-100.0},{"date":"2013-01-01","value":-13.8889},{"date":"2014-01-01","value":-96.7742},{"date":"2015-01-01","value":300.0},{"date":"2016-01-01","value":250.0},{"date":"2017-01-01","value":35.7143},{"date":"2018-01-01","value":-21.0526},{"date":"2019-01-01","value":-46.6667},{"date":"2020-01-01","value":-62.5},{"date":"2021-01-01","value":-100.0},{"date":"2025-01-01","value":-91.4634}],"summary":{"latest_period":"2025-01-01","latest_value":-91.4634,"max":925.0,"mean":73.6841,"min":-100.0,"of":191,"rank":102,"trend":"volatile"}}