{"id":"worldbank.immunization-measles.ton.annual","dataset_id":"worldbank-immunization-measles","indicator":"immunization-measles","geography":"TON","frequency":"annual","unit":"percent","start_period":"1981","end_period":"2024","org":"World Bank","original_indicator":"SH.IMM.MEAS","url":"https://api.worldbank.org/v2","retrieved_at":"2026-11-05T23:59:57+00:00","version":"1","geography_name":"Tonga","region":"East Asia & Pacific","observations":[{"period":"1981","value":9.0,"flags":""},{"period":"1982","value":44.0,"flags":""},{"period":"1983","value":67.0,"flags":""},{"period":"1984","value":43.0,"flags":""},{"period":"1985","value":81.0,"flags":""},{"period":"1986","value":37.0,"flags":""},{"period":"1987","value":88.0,"flags":""},{"period":"1988","value":81.0,"flags":""},{"period":"1989","value":84.0,"flags":""},{"period":"1990","value":86.0,"flags":""},{"period":"1991","value":90.0,"flags":""},{"period":"1992","value":87.0,"flags":""},{"period":"1993","value":87.0,"flags":""},{"period":"1994","value":86.0,"flags":""},{"period":"1995","value":94.0,"flags":""},{"period":"1996","value":95.0,"flags":""},{"period":"1997","value":97.0,"flags":""},{"period":"1998","value":96.0,"flags":""},{"period":"1999","value":97.0,"flags":""},{"period":"2000","value":95.0,"flags":""},{"period":"2001","value":93.0,"flags":""},{"period":"2002","value":90.0,"flags":""},{"period":"2003","value":99.0,"flags":""},{"period":"2004","value":99.0,"flags":""},{"period":"2005","value":99.0,"flags":""},{"period":"2006","value":99.0,"flags":""},{"period":"2007","value":99.0,"flags":""},{"period":"2008","value":99.0,"flags":""},{"period":"2009","value":99.0,"flags":""},{"period":"2010","value":99.0,"flags":""},{"period":"2011","value":99.0,"flags":""},{"period":"2012","value":95.0,"flags":""},{"period":"2013","value":99.0,"flags":""},{"period":"2014","value":99.0,"flags":""},{"period":"2015","value":99.0,"flags":""},{"period":"2016","value":98.0,"flags":""},{"period":"2017","value":99.0,"flags":""},{"period":"2018","value":99.0,"flags":""},{"period":"2019","value":99.0,"flags":""},{"period":"2020","value":99.0,"flags":""},{"period":"2021","value":99.0,"flags":""},{"period":"2022","value":99.0,"flags":""},{"period":"2023","value":99.0,"flags":""},{"period":"2024","value":99.0,"flags":""}],"indicator_name":"Immunization, measles","topic":"Health","source":"worldbank","provenance":{"organization":"World Bank","original_indicator":"SH.IMM.MEAS","url":"https://api.worldbank.org/v2","retrieved_at":"2026-11-05T23:59:57+00:00","version":"1","license":"see source"}}