Mine has 640, 100 in the past ten days. (Presumably as I updated it slightly.)
My personal website (not Google) analytics show that out of 290 unique visitors in a month, 40 use Windows NT or XP, no listings for phone and Mac although I know I get phone visits.
And the majority else, come from Google Robots/Spiders and a few other companies. (I know I can say no to being crawled, but I wanna, damnit.)
So those Google+ stats would probably come from Google crawling its own pages. Search query: 'Why is my Google+ viewcount so high?'