{"entity":{"iso2":"US","iso3":"USA","name":"United States of America","slug":"united-states"},"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":-27.6436},{"date":"1976-01-01","value":-41.8872},{"date":"1977-01-01","value":115.545},{"date":"1978-01-01","value":-5.23656},{"date":"1979-01-01","value":-21.3282},{"date":"1980-01-01","value":6.59273},{"date":"1981-01-01","value":-27.8613},{"date":"1982-01-01","value":51.8429},{"date":"1983-01-01","value":29.9736},{"date":"1984-01-01","value":-7.59237},{"date":"1985-01-01","value":57.6889},{"date":"1986-01-01","value":16.8849},{"date":"1987-01-01","value":-32.7056},{"date":"1988-01-01","value":22.2104},{"date":"1989-01-01","value":20.4928},{"date":"1990-01-01","value":9.93505},{"date":"1991-01-01","value":-40.5033},{"date":"1992-01-01","value":50.1655},{"date":"1993-01-01","value":61.303},{"date":"1994-01-01","value":-29.8968},{"date":"1995-01-01","value":11.2627},{"date":"1996-01-01","value":51.7617},{"date":"1997-01-01","value":-15.803},{"date":"1998-01-01","value":12.8123},{"date":"1999-01-01","value":-1.58001},{"date":"2000-01-01","value":7.94457},{"date":"2001-01-01","value":-3.64815},{"date":"2002-01-01","value":28.905},{"date":"2003-01-01","value":19.1997},{"date":"2004-01-01","value":121.748},{"date":"2005-01-01","value":-0.816974},{"date":"2006-01-01","value":-38.9756},{"date":"2007-01-01","value":-33.1244},{"date":"2008-01-01","value":26.3918},{"date":"2009-01-01","value":-100.0},{"date":"2011-01-01","value":-32.0544},{"date":"2012-01-01","value":157.904},{"date":"2013-01-01","value":-40.6778},{"date":"2014-01-01","value":15.1262},{"date":"2015-01-01","value":-37.2812},{"date":"2016-01-01","value":-13.0906},{"date":"2017-01-01","value":5.5809},{"date":"2018-01-01","value":-17.7391},{"date":"2021-01-01","value":-67.0946},{"date":"2022-01-01","value":-65.475},{"date":"2023-01-01","value":43.9244}],"summary":{"latest_period":"2023-01-01","latest_value":43.9244,"max":157.904,"mean":5.28652,"min":-100.0,"of":191,"rank":23,"trend":"volatile"}}