{"entity":{"iso2":"TO","iso3":"TON","name":"Tonga","slug":"tonga"},"indicator":{"licence":"CC BY-NC-SA 3.0 IGO (WHO)","slug":"hepatitis-b-surface-antigen-hbsag-prevalence-percent","source":"World Health Organization, Global Health Observatory","source_url":"https://www.who.int/data/gho/data/indicators/indicator-details/GHO/SDGHEPHBSAGPRV","title":"Hepatitis B surface antigen (HBsAg) prevalence (%)","unit":null},"observations":[{"date":"2015-01-01","value":1.1},{"date":"2016-01-01","value":1.1},{"date":"2017-01-01","value":1.1},{"date":"2018-01-01","value":1.0},{"date":"2019-01-01","value":1.0},{"date":"2020-01-01","value":0.9},{"date":"2021-01-01","value":0.8},{"date":"2022-01-01","value":0.7},{"date":"2023-01-01","value":0.6},{"date":"2024-01-01","value":0.6}],"summary":{"latest_period":"2024-01-01","latest_value":0.6,"max":1.1,"mean":0.89,"min":0.6,"of":192,"rank":51,"trend":"falling"}}