Ah, face palm: it's currently on the Google Homepage and the US hasn't really woken up yet...
Maybe most people simply don't click the Google Doodle?
Seems strange.
Random example: http://stats.grok.se/en/201108/Pierre_de_Fermat
That doodle was from Aug 17 2011 - 2.3M hits
I do have about three years worth of Wikipedia article traffics stored, so I could do long term tracking and some interesting data mining, but I keep getting side tracked into other hobby projects.