{"entity":{"iso2":"VU","iso3":"VUT","name":"Vanuatu","slug":"vanuatu"},"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":"1976-01-01","value":-37.5},{"date":"1977-01-01","value":536.0},{"date":"1978-01-01","value":433.333},{"date":"1979-01-01","value":-95.283},{"date":"1980-01-01","value":477.5},{"date":"1981-01-01","value":-88.3117},{"date":"1982-01-01","value":66.6667},{"date":"1983-01-01","value":-35.5556},{"date":"1984-01-01","value":720.69},{"date":"1985-01-01","value":690.336},{"date":"1986-01-01","value":-92.6635},{"date":"1987-01-01","value":-73.1884},{"date":"1988-01-01","value":78.3784},{"date":"1989-01-01","value":-40.9091},{"date":"1990-01-01","value":-92.3077},{"date":"1991-01-01","value":-100.0},{"date":"1993-01-01","value":0.0},{"date":"1994-01-01","value":-100.0},{"date":"1997-01-01","value":750.0},{"date":"2000-01-01","value":500.0},{"date":"2006-01-01","value":-100.0},{"date":"2019-01-01","value":-100.0},{"date":"2023-01-01","value":0.0},{"date":"2024-01-01","value":-100.0}],"summary":{"latest_period":"2024-01-01","latest_value":-100.0,"max":750.0,"mean":133.216,"min":-100.0,"of":191,"rank":128,"trend":"volatile"}}