You just have to consult, for example, the UN’s 2016 report on the Human Development Index, which notes that between 1990 and 2015, life expectancy and average years in school both rose by more than 4 years.
Dovremo consultare, par exemple, il rapporto 2016 dell’ONU sur l’Indicio del Dezvoltamento Humane, che note che, entre 1990 e 2015, l’espérance della vie e l’ano medio nel scolario avança a plus de 4 ani.