{"entity":{"iso2":"TZ","iso3":"TZA","name":"Tanzania, United Republic of","slug":"tanzania"},"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":"1977-01-01","value":-78.563},{"date":"1978-01-01","value":313.462},{"date":"1979-01-01","value":32.2924},{"date":"1980-01-01","value":40.0301},{"date":"1981-01-01","value":-6.59971},{"date":"1982-01-01","value":-18.3948},{"date":"1983-01-01","value":-5.12941},{"date":"1984-01-01","value":-58.3829},{"date":"1985-01-01","value":154.47},{"date":"1986-01-01","value":19.0164},{"date":"1987-01-01","value":-69.146},{"date":"1988-01-01","value":-19.6429},{"date":"1990-01-01","value":-97.369},{"date":"1991-01-01","value":-81.4815},{"date":"2004-01-01","value":-100.0}],"summary":{"latest_period":"2004-01-01","latest_value":-100.0,"max":313.462,"mean":1.63739,"min":-100.0,"of":191,"rank":128,"trend":"volatile"}}