Wow! For my age group (50-59 y/o male solo) the average speed was 11.42 mph!
I believe that's with stopping, naps etc. Maybe I'm wrong. Great radiolab broadcast on the crazies. Those people are wacky, Juri especially, talks about the hallucinations, scary.
http://www.wnyc.org/shows/radiolab/episodes/2010/04/16
I did 150 miles this week total, broken into 20, 30, 40 mile increments, the way I like it. I guess with my 20 mile morning rides I get 100+ a week-but I stopped counting, don't really see the point.