Comment by Ellie K</a> on August 18, 2010 at 5:26 pmAs a loyal Digger since 2007, I have no choice but to Digg this one! (No, I'm not the same Ellie K. who disegned the graphic, she is Ellie Konig).I only reviewed glancingly, but seems like your sources for the underlying data were relevant with appropriate dates always appreciated!