{"entity":{"iso2":"MT","iso3":"MLT","name":"Malta","slug":"malta"},"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":-72.9323},{"date":"1976-01-01","value":316.667},{"date":"1977-01-01","value":-90.0},{"date":"1978-01-01","value":453.333},{"date":"1979-01-01","value":-59.0361},{"date":"1980-01-01","value":-94.1176},{"date":"1982-01-01","value":111.765},{"date":"1983-01-01","value":-89.5833},{"date":"1984-01-01","value":-73.3333},{"date":"1986-01-01","value":50.0},{"date":"1987-01-01","value":-96.6667},{"date":"1988-01-01","value":28.5714},{"date":"1989-01-01","value":-66.6667},{"date":"1991-01-01","value":136.792},{"date":"1992-01-01","value":-99.2032},{"date":"1993-01-01","value":-50.0},{"date":"1995-01-01","value":63.8889},{"date":"1996-01-01","value":-83.0508},{"date":"1997-01-01","value":20.0},{"date":"1998-01-01","value":-66.6667},{"date":"2000-01-01","value":-95.0},{"date":"2001-01-01","value":-66.6667},{"date":"2002-01-01","value":300.0},{"date":"2003-01-01","value":75.0},{"date":"2004-01-01","value":-14.2857},{"date":"2005-01-01","value":16.6667},{"date":"2006-01-01","value":-71.4286},{"date":"2007-01-01","value":-100.0},{"date":"2009-01-01","value":-100.0},{"date":"2011-01-01","value":300.0},{"date":"2015-01-01","value":-100.0},{"date":"2018-01-01","value":-44.4444},{"date":"2019-01-01","value":200.0},{"date":"2020-01-01","value":-40.0},{"date":"2021-01-01","value":-100.0},{"date":"2025-01-01","value":-81.3953}],"summary":{"latest_period":"2025-01-01","latest_value":-81.3953,"max":453.333,"mean":8.83907,"min":-100.0,"of":191,"rank":79,"trend":"volatile"}}