{"entity":{"iso2":"VN","iso3":"VNM","name":"Viet Nam","slug":"viet-nam"},"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":-58.4977},{"date":"1976-01-01","value":29.7194},{"date":"1977-01-01","value":124.758},{"date":"1978-01-01","value":-32.9314},{"date":"1979-01-01","value":47.898},{"date":"1980-01-01","value":-14.4284},{"date":"1981-01-01","value":-22.1481},{"date":"1982-01-01","value":-20.4118},{"date":"1983-01-01","value":42.0839},{"date":"1984-01-01","value":-41.6922},{"date":"1985-01-01","value":-11.2234},{"date":"1986-01-01","value":-0.0681648},{"date":"1987-01-01","value":-30.6564},{"date":"1988-01-01","value":-28.9396},{"date":"1989-01-01","value":-47.9467},{"date":"1990-01-01","value":-63.7},{"date":"1991-01-01","value":14.0171},{"date":"1992-01-01","value":-5.16171},{"date":"1993-01-01","value":-43.383},{"date":"1994-01-01","value":38.6917},{"date":"1995-01-01","value":-29.7095},{"date":"1996-01-01","value":-37.1113},{"date":"1997-01-01","value":1.82173},{"date":"1998-01-01","value":-24.4728},{"date":"1999-01-01","value":-23.6041},{"date":"2000-01-01","value":57.9181},{"date":"2001-01-01","value":-12.9032},{"date":"2002-01-01","value":-46.6989},{"date":"2003-01-01","value":8.1571},{"date":"2004-01-01","value":-54.1899},{"date":"2005-01-01","value":-40.8537},{"date":"2006-01-01","value":-25.7732},{"date":"2007-01-01","value":27.0833},{"date":"2008-01-01","value":53.0055},{"date":"2009-01-01","value":-56.4286},{"date":"2010-01-01","value":-33.6066},{"date":"2011-01-01","value":29.6296},{"date":"2012-01-01","value":-6.66667},{"date":"2013-01-01","value":-44.898},{"date":"2014-01-01","value":66.6667},{"date":"2015-01-01","value":243.333},{"date":"2016-01-01","value":-13.5922},{"date":"2017-01-01","value":107.865},{"date":"2018-01-01","value":26.1261},{"date":"2019-01-01","value":44.7143},{"date":"2020-01-01","value":-84.4028},{"date":"2021-01-01","value":-72.1519},{"date":"2022-01-01","value":-54.5455},{"date":"2023-01-01","value":100.0},{"date":"2025-01-01","value":-83.6886}],"summary":{"latest_period":"2025-01-01","latest_value":-83.6886,"max":243.333,"mean":-2.05995,"min":-84.4028,"of":191,"rank":83,"trend":"volatile"}}