In Greece, GNU/Linux Climbs to All-Time High of 12% Based on statCounter
Not counting ChromeOS, only "proper" GNU/Linux :

LAST year [1, 2] and last month we wrote about GNU/Linux in Greece. Last month we saw it at 11% and the "market share" has since increased further. Now it stands at 12%, according to statCounter. If one also counts mobile devices, then Android dominates with 43% of "the market". █