The link you followed will bring you to this page:

https://www.ansa.it/sito/notizie/cronaca/2023/06/26/istat-litalia-e-un-paese-di-vecchi-187-anziani-per-100-giovani.-un-giovane-su-10-lascia-prima-gli-studi-superiori-_110eeb6a-d688-4f27-bc50-538768d68cc4.html#:~:text=L%27Italia%20%C3%A8%20uno%20dei%20Paesi%20pi%C3%B9%20%22vecchi%22,indirette%20della%20pandemia%20da%20Covid%2D19%20sulla%20dinamica