Data for all the indicators identified in the previous step have been gathered by sources provided by international institutions. The huge amount of missing data prevented the creation of a solid time series for all SDG indicators. Thus, the current database considers only the latest available data.
The table below reports, for each indicator, the source used for data gathering and the number of countries covered. Only 139 countries report data for all the indicators considered.
The current indicator values are finally integrated into the socio-economic database (GTAP8), which works as the starting point upon which to build scenarios for assessing future sustainability worldwide.