{"entity":{"iso2":"LV","iso3":"LVA","name":"Latvia","slug":"latvia"},"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":"1991-01-01","value":61.2403},{"date":"1992-01-01","value":-49.0385},{"date":"1993-01-01","value":8.49057},{"date":"1994-01-01","value":19.1304},{"date":"1995-01-01","value":-57.6642},{"date":"1996-01-01","value":-32.7586},{"date":"1997-01-01","value":289.744},{"date":"1998-01-01","value":-1.97368},{"date":"1999-01-01","value":-63.0872},{"date":"2000-01-01","value":145.455},{"date":"2001-01-01","value":18.5185},{"date":"2002-01-01","value":-0.625},{"date":"2003-01-01","value":-37.7358},{"date":"2004-01-01","value":-60.6061},{"date":"2005-01-01","value":-35.8974},{"date":"2006-01-01","value":16.0},{"date":"2007-01-01","value":-6.89655},{"date":"2008-01-01","value":-48.1481},{"date":"2009-01-01","value":-35.7143},{"date":"2010-01-01","value":0.0},{"date":"2011-01-01","value":11.1111},{"date":"2013-01-01","value":-21.7899},{"date":"2014-01-01","value":-59.7015},{"date":"2015-01-01","value":159.259},{"date":"2016-01-01","value":19.0476},{"date":"2017-01-01","value":-62.0},{"date":"2018-01-01","value":67.3684},{"date":"2019-01-01","value":352.83},{"date":"2020-01-01","value":-52.6389},{"date":"2021-01-01","value":-97.3607},{"date":"2022-01-01","value":411.111},{"date":"2023-01-01","value":141.304},{"date":"2025-01-01","value":-32.6761}],"summary":{"latest_period":"2025-01-01","latest_value":-32.6761,"max":411.111,"mean":29.2211,"min":-97.3607,"of":191,"rank":46,"trend":"volatile"}}