{"id":"who.who-ncd-bmi-18a.tha.annual","dataset_id":"who-ncd-bmi-18a","indicator":"who-ncd-bmi-18a","geography":"THA","frequency":"annual","unit":"percent","start_period":"1980","end_period":"2024","org":"World Health Organization","original_indicator":"NCD_BMI_18A","url":"https://ghoapi.azureedge.net/api","retrieved_at":"2026-11-07T23:22:27+00:00","version":"1","geography_name":"Thailand","region":"East Asia & Pacific","observations":[{"period":"1980","value":20.0,"flags":""},{"period":"1981","value":19.5,"flags":""},{"period":"1982","value":18.9,"flags":""},{"period":"1983","value":18.4,"flags":""},{"period":"1984","value":17.9,"flags":""},{"period":"1985","value":17.3,"flags":""},{"period":"1986","value":16.8,"flags":""},{"period":"1987","value":16.3,"flags":""},{"period":"1988","value":15.8,"flags":""},{"period":"1989","value":15.2,"flags":""},{"period":"1990","value":14.7,"flags":""},{"period":"1991","value":14.3,"flags":""},{"period":"1992","value":13.8,"flags":""},{"period":"1993","value":13.4,"flags":""},{"period":"1994","value":12.9,"flags":""},{"period":"1995","value":12.5,"flags":""},{"period":"1996","value":12.2,"flags":""},{"period":"1997","value":11.8,"flags":""},{"period":"1998","value":11.5,"flags":""},{"period":"1999","value":11.2,"flags":""},{"period":"2000","value":10.9,"flags":""},{"period":"2001","value":10.6,"flags":""},{"period":"2002","value":10.3,"flags":""},{"period":"2003","value":10.1,"flags":""},{"period":"2004","value":9.8,"flags":""},{"period":"2005","value":9.6,"flags":""},{"period":"2006","value":9.4,"flags":""},{"period":"2007","value":9.1,"flags":""},{"period":"2008","value":8.9,"flags":""},{"period":"2009","value":8.7,"flags":""},{"period":"2010","value":8.5,"flags":""},{"period":"2011","value":8.3,"flags":""},{"period":"2012","value":8.1,"flags":""},{"period":"2013","value":7.9,"flags":""},{"period":"2014","value":7.8,"flags":""},{"period":"2015","value":7.6,"flags":""},{"period":"2016","value":7.4,"flags":""},{"period":"2017","value":7.3,"flags":""},{"period":"2018","value":7.1,"flags":""},{"period":"2019","value":7.0,"flags":""},{"period":"2020","value":6.9,"flags":""},{"period":"2021","value":6.8,"flags":""},{"period":"2022","value":6.7,"flags":""},{"period":"2023","value":6.6,"flags":""},{"period":"2024","value":6.5,"flags":""}],"indicator_name":"Underweight among adults, BMI < 18.5 kg/m2","topic":"Health","source":"who","provenance":{"organization":"World Health Organization","original_indicator":"NCD_BMI_18A","url":"https://ghoapi.azureedge.net/api","retrieved_at":"2026-11-07T23:22:27+00:00","version":"1","license":"see source"}}