As you can see the United States leads with over 25.000 visitors, close second is the United Kingdom with over 20k and far away for 3rd to 5th are Spain, Indonesia and Malaysia.
I've had some nice boosts from China as well and some months they've been in the top 3, but they haven't been visiting regularly though.
From 6th to 10th place are visitors from European countries with Sweden, Germany, Belgium, Poland and Denmark, which are in no particular order.
So yeah either Valencia CF has the most fans in the US or Kyle is visiting my blog over 100 times a day. :)