For a statistical analysis of Bob Dylan's radio show, might I direct your attention here (Vanity Fair, of all places):

http://www.vanityfair.com/ontheweb/blogs/daily/2008/04/dylan.html

Do we need more analysis of the thoughts of Mr Zimmerman? Is this taking the obsession with his persona too far? I don't really care - I'll be making a mint julep when I get home from work though...