Tonga's fourth Household Income and Expenditure Survey (HIES) undertaken by Tonga Statistics Department (TSD). The previous HIES took place in 2001, 2009 and 2015.
20 October 2020 — As the small Pacific Island nation celebrated World Statistics Day, the Government of Tonga released results of the Tonga Multiple Indicator Cluster Survey (MICS) 2019, the country’s first-ever MICS.
The first quadrennial Pacific Regional Sustainable Development Report will be released after the Pacific Forum Leaders meeting in Nauru in September 2018.