Medical certification of cause of death (MCCD) is a key source of mortality statistics. The death certificate is a permanent record of the fact and characteristics of death. It provides important personal information about the decedent, the circumstances and the cause of death.
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.
“Finding so much data on this small island country accessible in a single place and so well documented has been an unexpected treasure”, said political economy professor, William Mishler.