Recent Italian Economic History

I find myself periodically blown away by new representations of Italian macroeconomic performance:

They had two extra recessions! Now this in part reflects the demographic situation which points toward population shrinkage in the near future. But Italy has an extremely high debt:GDP ratio and the debt:GDP ratio doesn’t care about evaluating your data in per working age citizen terms. The country’s not that high on the list for a short-term sovereign debt crisis, but I don’t really understand what the medium-term resolution here is supposed to be.