{"entity":{"iso2":"PT","iso3":"PRT","name":"Portugal","slug":"portugal"},"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":-35.3234},{"date":"1976-01-01","value":10.7692},{"date":"1977-01-01","value":-78.4722},{"date":"1978-01-01","value":58.0645},{"date":"1979-01-01","value":87.7551},{"date":"1980-01-01","value":-22.8261},{"date":"1981-01-01","value":-2.8169},{"date":"1982-01-01","value":-14.4928},{"date":"1983-01-01","value":110.169},{"date":"1984-01-01","value":-50.0},{"date":"1985-01-01","value":-12.9032},{"date":"1986-01-01","value":503.704},{"date":"1987-01-01","value":-41.7178},{"date":"1988-01-01","value":-74.2105},{"date":"1989-01-01","value":459.184},{"date":"1990-01-01","value":-63.1387},{"date":"1991-01-01","value":-50.495},{"date":"1992-01-01","value":-60.0},{"date":"1993-01-01","value":30.0},{"date":"1994-01-01","value":-26.9231},{"date":"1995-01-01","value":0.0},{"date":"1996-01-01","value":-15.7895},{"date":"1997-01-01","value":-31.25},{"date":"1998-01-01","value":-18.1818},{"date":"1999-01-01","value":33.3333},{"date":"2000-01-01","value":83.3333},{"date":"2003-01-01","value":100.0},{"date":"2004-01-01","value":850.0},{"date":"2005-01-01","value":105.263},{"date":"2006-01-01","value":-71.7949},{"date":"2007-01-01","value":0.0},{"date":"2008-01-01","value":213.636},{"date":"2009-01-01","value":-1.44928},{"date":"2010-01-01","value":-79.4118},{"date":"2011-01-01","value":128.571},{"date":"2012-01-01","value":600.0},{"date":"2013-01-01","value":-54.0179},{"date":"2014-01-01","value":-29.1262},{"date":"2015-01-01","value":215.068},{"date":"2016-01-01","value":144.783},{"date":"2017-01-01","value":-79.5737},{"date":"2018-01-01","value":-47.8261},{"date":"2019-01-01","value":40.0},{"date":"2020-01-01","value":-60.7143},{"date":"2021-01-01","value":-90.9091},{"date":"2022-01-01","value":166.667},{"date":"2023-01-01","value":287.5},{"date":"2025-01-01","value":-97.861}],"summary":{"latest_period":"2025-01-01","latest_value":-97.861,"max":850.0,"mean":62.8453,"min":-97.861,"of":191,"rank":117,"trend":"volatile"}}