{"entity":{"iso2":"BN","iso3":"BRN","name":"Brunei Darussalam","slug":"brunei-darussalam"},"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":"1981-01-01","value":200.0},{"date":"1982-01-01","value":-100.0},{"date":"1984-01-01","value":100.0},{"date":"1985-01-01","value":0.0},{"date":"1986-01-01","value":0.0},{"date":"1987-01-01","value":-100.0},{"date":"1999-01-01","value":133.333},{"date":"2000-01-01","value":-71.4286},{"date":"2001-01-01","value":-100.0},{"date":"2009-01-01","value":-100.0},{"date":"2011-01-01","value":200.0},{"date":"2012-01-01","value":0.0},{"date":"2015-01-01","value":400.0},{"date":"2016-01-01","value":-100.0},{"date":"2020-01-01","value":-100.0},{"date":"2025-01-01","value":600.0}],"summary":{"latest_period":"2025-01-01","latest_value":600.0,"max":600.0,"mean":60.119,"min":-100.0,"of":191,"rank":5,"trend":"volatile"}}