{"entity":{"iso2":"NE","iso3":"NER","name":"Niger","slug":"niger"},"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":53.9485},{"date":"1976-01-01","value":-49.0218},{"date":"1977-01-01","value":-4.61847},{"date":"1978-01-01","value":-10.269},{"date":"1979-01-01","value":90.6934},{"date":"1980-01-01","value":13.7389},{"date":"1981-01-01","value":-31.0697},{"date":"1982-01-01","value":-31.6478},{"date":"1983-01-01","value":83.0357},{"date":"1984-01-01","value":-12.5296},{"date":"1985-01-01","value":-16.1727},{"date":"1986-01-01","value":56.111},{"date":"1987-01-01","value":-43.6747},{"date":"1988-01-01","value":-21.7034},{"date":"1989-01-01","value":18.2772},{"date":"1990-01-01","value":-27.591},{"date":"1991-01-01","value":-78.3688},{"date":"1998-01-01","value":-17.8997},{"date":"1999-01-01","value":-6.60557},{"date":"2000-01-01","value":128.332},{"date":"2001-01-01","value":-51.4951},{"date":"2002-01-01","value":-3.54374},{"date":"2003-01-01","value":-19.2882},{"date":"2004-01-01","value":2.37079},{"date":"2005-01-01","value":-44.1408},{"date":"2006-01-01","value":64.5937},{"date":"2007-01-01","value":61.4106},{"date":"2008-01-01","value":-62.578},{"date":"2009-01-01","value":12.9274},{"date":"2010-01-01","value":-97.7843},{"date":"2012-01-01","value":-100.0},{"date":"2014-01-01","value":-100.0},{"date":"2017-01-01","value":-41.2863},{"date":"2018-01-01","value":82.6855},{"date":"2019-01-01","value":12.766},{"date":"2020-01-01","value":-33.9623},{"date":"2021-01-01","value":-100.0},{"date":"2023-01-01","value":77.6119},{"date":"2024-01-01","value":-82.6891},{"date":"2025-01-01","value":-100.0}],"summary":{"latest_period":"2025-01-01","latest_value":-100.0,"max":128.332,"mean":-10.7359,"min":-100.0,"of":191,"rank":128,"trend":"volatile"}}