{"entity":{"iso2":"BT","iso3":"BTN","name":"Bhutan","slug":"bhutan"},"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":"1979-01-01","value":67.4263},{"date":"1980-01-01","value":-62.8503},{"date":"1981-01-01","value":15.0862},{"date":"1982-01-01","value":48.8764},{"date":"1983-01-01","value":-50.6918},{"date":"1984-01-01","value":-42.8571},{"date":"1985-01-01","value":-4.91071},{"date":"1986-01-01","value":-24.8826},{"date":"1987-01-01","value":-43.75},{"date":"1988-01-01","value":143.333},{"date":"1989-01-01","value":2.73973},{"date":"1990-01-01","value":-98.6667},{"date":"1991-01-01","value":166.667},{"date":"1992-01-01","value":12.5},{"date":"1993-01-01","value":-100.0},{"date":"1996-01-01","value":-100.0},{"date":"2000-01-01","value":-96.1373},{"date":"2001-01-01","value":-100.0},{"date":"2006-01-01","value":0.0},{"date":"2007-01-01","value":-100.0},{"date":"2012-01-01","value":-100.0},{"date":"2016-01-01","value":-66.6667},{"date":"2017-01-01","value":275.0},{"date":"2018-01-01","value":-46.6667},{"date":"2019-01-01","value":-75.0},{"date":"2020-01-01","value":-100.0},{"date":"2025-01-01","value":25.0}],"summary":{"latest_period":"2025-01-01","latest_value":25.0,"max":275.0,"mean":-16.9056,"min":-100.0,"of":191,"rank":26,"trend":"volatile"}}